Everything in this post is not biased. There are no playing favorites.
I will only put in the mainstream guilds aka guilds in the UN
Top End Raiding Guilds
Seal Team (Ran By Smash, Vill, Meaners, Quicken)
About them: Currently the top raiding guild on the server. They have gotten most of the server first kills on raid targets. Their guild roster mostly consists of members of the guild <Aftermath> from blue. They are very experienced in raiding and have a lot of good people in it. They are considered to be the largest guild on the server at the moment. This information might be incorrect but they use a hybrid RA + DKP system to get loot. For example: You make a list of items you want and you have to attend that raid to be eligible to be on that list. If you miss one raid, you'll be bumped down. It's like a hybrid of DKP/Loot Council but it's fair.
Pros: Top of the server at raiding, Friendly Members, Good mentors to casual guilds and players alike, Hosted a lot of Server Events, Great if you have a lot of time and enjoy hardcore raiding, they will ride and die with you
Cons: Zerg guild (lots of members), lots of raid requirements and RA needed to get loot (talking 70% +), have been the only guild on the server to be raid suspended (on both servers), not for casual players looking to get easy loot (have to prove your worth and not just be a zergling), they also have a lot of haters, a lot of their members have been banned for "stealing" holgresh elder beads
Kingdom (Ran by Cothatanii, Perplexa, variety of officers)
About them: Currently the second top raiding guild on the server. Just like <Seal Team>, they raid and kill dragons. Though they are not always as good as <Seal Team>, they have beaten them in a few targets and gave them some fun competition. That being said, it is not toxic between the two guilds and both are pretty chill with each other mostly. They consist of a few members from <Azure Guard> and <Awakened>.
Pros: Good mix of hardcore and casual players, very friendly members and have gotten three guilds to merged with them (Calamitous Intent, Dynasty, and Aussie Crew), a great alternative to end game raiding if you can't keep up with <Seal Team>'s rigorous style
Cons: Always in the shadow of <Seal Team>, members like to leave and join <Seal Team>
Casual Raiding Guilds
Force of Will (Ran by Legendary, Zalzeena, Nonphixion, other officers)
About them: They are one of the newer guilds on the server. They are the combined force of <Venerate> and <Black Lotus>. <Black Lotus> was originally <BDA> from the blue server. They merged together in the hopes of competing in Velious. They are decently sized but are much smaller than <Kingdom> and <Seal Team>. They are considered to be the third top guild on the server.
Pros: Great guild if you enjoy casual raiding but want a taste of dragon kills every once in a while, most members are friendly and nice, lots of group events
Cons: They have been known on the server to be the most "toxic" guild on the server, often petitioning against <Seal Team>, they are proned to wipe a lot on raids (it once took them 4 hours to kill Talendor), many members have left to join <Kingdom> complaining that <Force of Will> is toxic and likes to play "Favorites", they are have caused the most problems in the UN from petitioning, not helping scout rolls, causing problems in Dragon Necropolis, lawyer questing, training, playing innocent, and angering other members of different guilds.
Safe Space (Ran by Shinko and Petyrr aka Littlefinger)
About them: They are also one of the newer guilds on the server. They are a semi-casual guild on this server who casual raids. They have killed targets like Vindi, KDT, and even Kelorek`Dar. They are growing fast and they have a pretty positive environment.
Pros: Great if you love having a sense of community, lots of casual guild events (Vilefang, Lodizal, KDT, kael Platehouse, HoT), members are very kind
Cons: Lots of people have speculated that they are where all the server's "trash" washes up to (rumored), their guild leader Shinko tends to troll a lot on the UN, their co-leader Petyrr (aka Littlefinger) have been banned for boxing,
Castle (Ran by Potatus)
About them: Super casual guild. They are also on the server Blue. Known on the server to be the #1 leveling and casual raiding guild. They are decently sized and new members are always joining every day.
Pros: Great if your just starting out in the game, casual raiding, lots of guild events similar to <Safe Space>, always people to group with
Cons: Will never get to kill the "big dragons" so if you plan on doing that, this is not the guild for you, not a whole lot....they seem to have the most positive presence on the server
Savage (Ran by Meatee, Risu, ???)
About them: They are a relatively small guild focused on doing endgame content with small amounts of people. They are a crew of blue players who came over. Lots of skilled members in their guild. Little is known about them but their leader Meatee has been a kind person on the UN
Pros: Small guild
Cons: Not a whole lot to say, Savage doesn't really have a huge presence on the server at the moment.
Fires of Heaven (Ran by Alyndrae, Qenni, Kilerenn, Kaldak, Zark, and many others)
About them: They are small guild. They used to be pretty huge but as time went on, they became smaller and smaller. They are known to have lots of ties with <Seal Team> with many members leaving FOH to join them. At the moment, they only have about 20-30 active raiders and many of their senior members joining <Kingdom>.
Pros: Fun guild to raid with small numbers, often raid with other guilds such as <Castle>, super casual, really close to <Seal Team>
Cons: Dying guild with most of its senior members leaving, guild leader has been inactive for long periods of time, many former members have stated that "officers are lazy and do not listen to their members", always kissing <Seal Team>'s ass
That is my current guild review for Green on 9/7/21.
Expect another one once the sleeper has been awoken.
Good day and feel free to comment your opinions
I apologize in advance for any disagreements and grammatical errors.