Provided you're using him in LF. try the 1925 Simmons, which is cheaper and bullet-proof. Fewer RBIs and slightly more error-prone, but a better bargain.
Most of the time I've used Simmons is in 80 or 100mil in Forbes and I use the '25 version just about every time. I think that card is best suited at those caps and you can always find a use for a few extra mil elsewhere. At 140mil I guess I'd be inclined to use '30 version at either park. But then again, I've not particularly injury risk averse, which occasionally comes back to bite me.
I'd use '30 in either park unless you have a lot of players with injury risk elsewhere. I doubt you'll be disappointed no matter which you pick, though. I think Simmons has 3 great cards without a dud in the bunch.