SKs wipe raids, Paladins rescue them.

At raids they're both just warm bodies to fill groups, basically useless. They're fine in groups and solo though.

Once you get into the PoP to the Dragons era knights find a lot of use as off-tanks and trash-tanks, but from Classic - Velious they're just group tanks.

Pal/SK pretty much do all of the NToV trash tanking (minus flurries) due to snap agro. Pal/SK are also usually the main tanks for VP dragons/Trak, also because of snap agro.

SK's good for ToV/VP trainups too.
Pal good for DA training/engage/Soulfire FTE engages in highly contested situations.

So, no, not warm bodies to fill groups, unless the player is a warm body.

Paladins also have a much, much easier Epic to complete than SK. IC isn't the hardest Epic to finish, but it's much more bottlenecked than Pally's FD.

If you want to raid, go Paladin. They are used more often than Shadowknights. Shadowknights are sadly the worst raid class in the game. Not saying they are never used, and not saying there aren't some great raiding Shadowknights. But overall Shadowknights bring little to the table in a raid.

For grouping, both are great choices.

For soloing, it depends on what you are doing. SK's are better whenever you can fear kite, and when using FD is advantageous. Paladins are better when fighting mobs that cannot be feared, they can face tank better due to healing.

Which one fights undead better? I thought only Paladins and Clerics were the ones with Undead-only nukes (and Ghoulbane).

SK's get plenty of Undead-only spells too. For example, SK's get Undead lulls. Not as good as a Paladin, but this allows us to fight quite well in Howling Stones. https://www.youtube.com/watch?v=WmDvk3udrhI Here is a video of me in Howling Stones.

SK's get the Undead fear, which is much cheaper mana-wise than regular fear. It also has a faster cast.

SK's also get Undead nukes. But generally speaking Undead nukes are not very mana-efficient on Hybrids. It's better to just do damage with melee/pet and fear kite to prevent damage.

SK's get Invis vs. Undead too.

I don't think there is really a clear winner as to who fights undead better. Ghoulbane isn't a very good weapon later on, and you can get https://wiki.project1999.com/Engrave...k_Deathbringer which is 100% better and both classes can use it.

That's an option for an SK, but Paladins don't get a pet, or any mana-efficient DoT's to supplement their melee. Mixing in nukes with their melee is their only means of increasing their DPS against Undead.

So it's either that, or just slowly chip away at the mob and save all your mana for heals.

True, nukes are probably a bit better for Paladins. But yeah as long as Undead can be fear kited, there's little reason to use your Undead Nuke on an SK. Honestly I only use the Undead Nuke to increase Evocation lol, since it is one of the only spells a Shadowknight gets that has Evocation.

Both SK's and Paladins get the same Undead Nukes, so they are equal in that sense.

SKs aren't bad at raiding. They are just not super useful when it comes time to kill the x00,000+ hp Velious dragon, as they can't tank the hardest hitting mobs and do less DPS than a poorly geared rogue. This can be said about a lot of classes though. Over SKs, Paladins do have the edge in that scenario because they can Soulfire and LH (read: complete heal) people during a fight. Similarly, however, they aren't super useful in large numbers as they do wet noodle DPS. Both classes are the desirable as a tank over a warrior when the mob doesn't hit super hard, however, because they initiate and maintain aggro easier than a warrior. In modern raiding, there is a lot of trash to clear, so knights are very welcome during this phase.

What SKs can do over Paladins is tag and flop all day, which makes them great for pulling in the planes (snare/fear is also very useful in PoF) and useful for certain pulls elsewhere. Additionally, they can use their pet to do train outs, which is kind of a reverse pull of sorts. Both of these roles are a little more niche and a little more involved than clicking a CH on a guy, so it takes some practice/knowledge to be useful. Suffice to say if you just wanna sit in camp and tank things or exclusively log in to kill the x00,000+ hp velious dragon, get thee to a paladin or more likely warrior.