Your PS3 deserves to have them both :)

Valkyria Chronicles is more polished and I found it to be more fun, but Disgaea has pretty much infinite replay value after the already lengthy single player game.

Still though, I'd say go with VC.

Both. My pick's Disgaea3. the disc alone will last your a Bajillion years, let's not even talk about DLC. The game's worth every cent you pay. The Story is probably better in VC, the lasting appeal is better in Disgeae, both have great characters, Disgeae has the deeper battle system, Valkyria Chronicles has the better art style. THey're both great and both worth the money.

Valkyria Chronicle is a far more polish and visually pleasing expirience with superior and innovative gameplay. The story is standard anime-bait but well executed with decent characterisation. There is very little flaw that you can pick with this game. Any fans of SRPG should give it a shot.

Disgaea 3 is a throw-back of the PS2 era with horrible in game animation, nice asthetic presentation and a large dose of humour that's hard to find anywhere else. The game can last you a LONG time, far longer than VC, but only if you find it's rather repetetive gameplay appealing enough. The mechanic is simple but also very addictive and can drag you in for hours if you're not careful.

I'd recommend VC overall but I don't think you'll be dissapointed in D3 if you like the genre.

Valkyria Chronicles, end of story. :P

Disgea is fun, but VC is epic.

valkyria Chronicles,
i have both dont play disgaea, is not for begineers it requires a Phd in Srpgs, is very complicated and not noob freandly at all

QFT. Valkyria Chronicles is one of the best games in awhile. I have really enjoyed playing the game. I definitely like Disgea but that is where it ended.