I'm probably one of the few players who would advocate both Scioscia and Hassey--but think my preference would be for Scoiscia.
In Hassey's favor:
1) If you catch one of his three good years, he will kill lefties. He gave me a .939 OPS in a platoon role. Not everybody seems to get those results, though.
2) Even in an off year, he should give you pretty good OBP.
3) Although he has a +1 arm and limited range, he is a low error player. He won't throw balls away or give you a lot of passed balls.
In Scioscia's favor:
1) He's cheaper.
2) He's a much better defender--in fact, an outstanding defensive player.
3) As somebody mentioned above, in most years he doesn't need to platoon. Hassey needs a platoon even in his best years, so he needs a good RH counterpart. Sometimes you can get one for .75M, sometimes not.
4) Scioscia often seems to out-hit his card, which may be a product of having played in Dodger Stadium. I've never had a bad year from him, and in one recent season he gave me a .842 OPS despite being in 89, his .698 OPS year. Several times I've planned to platoon him and he's outhit the righty and taken over the fulltime job.
5) Like Hassey, Scioscia's forte is OBP, which is not always easy to find from a catcher.
6) He's an excellent bat-handler. I simply don't use the bunt or hit & run, but if you're into that sort of thing, he's excellent at both.
Hassey's peaks are higher--he can be awesome when on. It might be worth the gamble to try him, since if he doesn't work out, Scioscia may still be around--you often find him in the FA pool, for some strange reason. But if you want a steady performer you can count on, I would lean toward Scioscia.
My two favorite catchers in the 80's are Scioscia and Fisk. Scioscia isn't the great hitter that Fisk is, but he gives you a lot of bang for your buck, overall. :wink: