At a reletively high lvl, the MOST important thing is to find a BRD or RDM, beceause exp needed tnl is really high, and going out to party without a refresher is a no no and generally isnt done, so RDM or BRD that has the appropiate stuff is needed first. Then i look for a PLD or NIN, if none are found i find WAR. Tanks are important to snag as they are rare at high lvls. Then i usually find a BLM for busrting and a melee that fits the current mobs we are facing. Like DRG vs flies or MNKs vs bones. Then prolly a SAM to create renkei prowess. Pullers generally know what they are doing at this lvl so its not usually an issue.

I first look for if i know you before and if you are a good player

then i look for your main job and your sub job, whate type and is it lvled.

Then your Search Comment in Green, putting something like:

<Gustav Tunnel> PT +15VIT @3000/7000
<food>: Fish Mithkabobs ENG/JPN PT OK!
PlayTime: 4-5 Hours HeaterSheild ^^b

i dunno but something like that to show me that you are more likable and exceptional out of the other bunch of people i wanna invite.

Then prolly race, and then Rank, the higher the Rank, generally means you are better and more experienced. Not always, but in general it does.

Of course your location matters too, if your in jeuno, then definetly, if not..there has to be a good Search Comment to warrant me to /tell you.