I had fun playing a round on each of the BF42 Classic maps.
I feel like I could get into just BF42 Classic if they added more maps and supported with improvements/refinements. But who knows how I would feel after the nostalgia factor wears off.
I don't really have much interest in replaying BC2 or BF3.
BF42 Classic tho is a different story. I think because it's so easy to get into and that was the first BF game and the first I played. And the graphics jump is a big leap. While the game is a big leap back to simpler and more brutal times.