I was too lazy to edit."All the 5"? Methinks you're shortchanging them a bit, unless you were strictly speaking about Origin.
As for playing them, I played a lot of BF 1942, a lot of BF2, a lot of BF BC2, about 15mins. of BF3 & BF1..... DAMN, their naming/numbering scheme leaves a LOT to be desired.
I actually bought the battlefield collection a while back. It includes a couple other titles as well. Strictly speaking I meant battlefield 1-5 of which I got 2 or 3 from this thread.