When I look at an app, I want to see it written well. It isn't a resume, but it is a reflection of the person behind it. Will the person mix well?
After that, I go through a little checklist.
I look at the gear. Does it all make sense? Is it what they should be wearing at that stage of the game? If they haven't done any FL content, have they done what they could with normal Valor points? Have they done what they can with rewards from dailies? AH items? Rep? Specifically, do they have the iLevel 365 items? The two rings. The boots. The cloak. How are they progressing on the three tier-12 items? The bracers? The neck?
Then I look at gems and enchants. Do they have the appropriate bonuses for BS, LW, Ench, JC, etc? Are they using Agility gems unless they get a +20 agility socket bonus? Do they have the helm and shoulder rep enchants? Do they have the right meta gem? Did they get a belt buckle? The enchants don't need to be the most expensive versions, but really those prices are coming down a lot.
Then I look at talents. Are they completely nuts, or is it a reasonable approximation of a good spec?
Then if things look okay so far, I look at their reforging. I load them up in femaledwarf.com and/or askmrrobot.com. I really like to see their hit really close to 100%. I want to see mastery sacrificed for crit and haste.
And finally, to know what they know, I look at what boss kills they've done and how many times they've done them.
In a nutshell for the TL;DR crowd:
- Decent written app.
- Badge gear.
- Dailies / Rep gear.
- Proper gems.
- Proper enchants and rep enchants.
- Reasonable talents.
- Good reforging.
- Bosses they farmed.