anyone knows ?

isnt really a best, it depends on what you wanna do in the game, melee or cast?

id suggest mage since caster is usually quicker to mq than a melee

it so hard to get a cata team though.. ls seems so dead now D:

My own favorit is guardian gg / tank / heal cannot be bether
Not that any of those others can be formed but easiest would i like to say

I've not really had much of a problem.

Unless its the middle of the night.

If you can't find a party right away just afk for 2-3 minutes at a time and do some posting or reading or other website surfing and come back and see if you've got an invite.