Well, if you're dead and on the ground, just take the time to at least look at who you're asking a rez for, or click on them and see if they're a cleric or not. You can either ask politely or stay dead on the ground for another 2 minutes trying to get a rez from "u rez."
I find that most clerics just give a buff when they feel like it ... I'm proud to say I never asked for a buff ^O^ (well, except once, when I think I asked one of my guildies for one o-o;) If you want a buff, you either get it or just ask politely. Would you rather get a buff by typing out a sentence 2 seconds longer or stay the entire hour without a buff?
And just LOL @ Hessah.