well lildeath the problem I find - with a lot of the A and rt classes - majority of them are bunch of n00bs... I dunno why but everyone that joined factions decided to take up the rt and a classess... maybe cos they look seksi on the box or something...
so when ever I quest I usualy ask the following questions
Do you have any greens...
For a Necro I usually ask if they have BR or if they MM or SS
For a Ranger I ask if they barrage or spike
For a Ele I ask if they are a Nuker
For a W/Mo I ask if they have glad defence
For a Mes I just go blah or can you spike

For a rt I boot them

For a A I let then die 20 times if they are n00bs
With that I usualy get a good balance of players.