Like you, I was wowed by the graphics of the first VC back in 2008. It was a must-have game for me the first moment I saw it. I never beat it though 'cause it gets hard.
Then I got VC 2 for PSP and, kind of the same thing, didn't beat it 'cause it got difficult.
I got VC Rev and played it up until a point, the point where I got so annoyed it wasn't like the strategy VC games, that I quit. I just listened to the soundtrack though and it's good. I'll replay it sometime.
4, I've played the demo and can't wait to get a copy when the price comes down. I love the BLiTZ battle system. So unique. It brings a certain amount of action into a turn-based system that recreates my imagination when I used to play board games like Squad Leader. I wish that battle system would be used in more games. That battle system also shows off the graphics by letting you roam a 3-D space and look at those wonderful maps.
I hope 4 is doing well. I want to see them keep making games.


