A group can consist of those three classes without DPS, however, 3 rogues alone wont get very far. Half the group will be these key classes with DPS filling in the remaining slots but can contain multiple tanks or CC focusing on DPS (enchanter will top the charts with a charmed pet). Granted, groups will not likely take a second healer to be DPS but I've seen plenty of groups toss a warrior in as DPS or have a pally and a SK. Tank/Healer/CC are usually always the classes in demand when trying to form a group from my experience.

I didn't say 3 rogues alone would get far. If you're looking to group, a rogue is going to find way more opportunities than any other class. That's my point.

Wizard best choice

A rogue isn't needed to make a group *function*, it's just there to increase DPS (by a good amount i admit). So people generally like to have rogues in a group, but only when the bare neccessities are taken care of. Healer + tank usually make the core of most groups (there are possibilities around this, but this is the proven most efficient way). Next there is CC. All healers can root, so they have some basic CC already... but often that's not enough. Only when those functions are present DPS becomes a favoured choice. But although rogue maybe the best pure DPS class, it's not the only option. Pet classes can DPS reasonably well and usually bring other abilities as well. A chanter who knows how to charm (or even a bard) can do a lot of DPS.

So, rogue isn't an obvious choice. Still it will usually work in areas that have enough groups.

A rogue won't wait nearly as long for a spot to open up as any other class. If you don't believe me, go sit at the zone in of any popular grouping zone and see for yourself.

This is true in my experience. Every group only wants one tank and healer, but most groups will take multiple rogues or DPS.

Monk is a pretty solid choice. Dps that self heals and can pull. Can tank in a pinch if geared reasonably.

I never struggle to find groups on warriors.

Rangers people tend to avoid, even though I find them reasonably useful in groups.

Clerics... There seems to be an overabundance of healers levelling up at the moment. A good bet for healers is to go to popular monk solo spots and duo up.

I love having a ranger in certain zones. High Keep for example. Splitting the Raider Room becomes trivial with a ranger in the group (or a druid, but the ranger is more likely to pull it himself)

this. 6 wizards is even better.

if u like sitting roll a cleric, the server always need more of them!