Thanks for the recommendations!
Badem sound great, I'll defiitely listen to more of their songs asap.
Gripin are just OK, I'll look for a couple more songs to see if I find anything better than Zor Geliyor.
Pamela's voice is too harsh / metallic for my tastes, sorry.
I don't like nu metal or rap-ish rock, but I have to admit that the rock parts in maNga's songs are well done

Asli is nice, but I like this song better:
http://uk.youtube.com/watch?v=oPs6GpPYQ74
I already listened to Vega, they're very uneven and so far I couldn't find an anthem song from them.
Uçnoktabir's singer's voice is indeed great, not too sweet as Vega's, not too harsh as Pamela's, but she's not really pushing it to any limits in Degismem
I like her better in
http://uk.youtube.com/watch?v=YpDWgH74kQo
http://uk.youtube.com/watch?v=EQAUZGKia50 (Barda looks like a very unsettling movie, lots of violence)
Thanks again!