While i haven't tried Azkend i can tell you that Orions is absolutely awesome. Lots replay value and just an allround great game, even if it could use an update by now
Kind of a difference in comparison. I'd take Azkend though. It's an excellent match-3 type game and I wasted too many hours on it.
Wow these are very different games to compare! Haven't played Orions yet, but probably will get it at some point as it's one of the few games of it's type on the iPhone/iPod Touch. I've heard good things about it on this forum. Azkend is the first game where I bought the Full version after playing the demo, I just couldn't put it down. It's a fantastic game, well polished and lots of fun, decent amount of replay value. Be sure to check out the lite version.
Oh man, why do I have to choose one? In all honesty though, both are truly amazing games, the best in their genre. Azkend just completely obliterates any other match 3 out there (except for Smiles) and Orions is a great card duel game, of which there aren't many. I see you have already chosen Orions, so maybe next time you are thinking of getting an app, get Azkend, you will not regret it.