Probably B, but not much in it. Looking at both sets of attributes B gives the impression he is much better, as he has more attributes which are higher. However, are Pace, Determination, Accelration or Aggression much use for a keeper? Probably not.
But, B shades it for his superior distribution (Kicking+Throwing) and Reflexes.
Other attributes I like to consider as I tend to favour a sweeper keeper (A:B)
Communication - 3:10
Eccentricity - 2:3
Rushing Out - 4:10
Acceleration - 10:10
Pace - 13:11
Ok what do we make of this well your current keeper is significant better in 3 areas (handling, concentration & agility) but significantly worse in 3 main areas (One on ones, reflexes & decisions) + 2 secondary areas (communication & rushing out).
Overall I would say not that much between them and they both have their strengths & weaknesses. Personally I would look to the coach reports and see what strengths & weaknesses they list that give you an idea of hidden attributes - things like being consistent, likeness for big matches & fitting in with a positive team personality would all be good whilst the likes of injuries, inconsistent or not fitting in would be bad.
No I didn't, none of those three are listed as main or even secondary attributes for a GK.
Kicking is only the distance the keeper can get with his kick while I don't for sure but I suspect throwing is the same.
Determination isn't really relevant here but more fits in with personality/hidden attributes which I've mentioned at the bottom of my post. It is also more important when looking at younger players that you want to improve but given the level the OP is playing at he is much more interested in current ability.
I'd say B, but not by much. I'd agree pretty much with what Cougar says. I'd also say it might depend on the overall quality of your team.
Keeper A's better handling might be beneficial if you're seeing teams take a lot of pot shots from distance, but most of the game is taking place in the opponent's half. He'll probably spill less balls and his better concentration means he won't switch off if he doesn't have anything to do for 20 minutes.
B is probably better if you are a lesser team, as he edges it in those areas that I'd say are more important when you're facing a fair amount of shots. Better kicking and throwing for example is an advantage if your keeper will be seeing a lot of the ball. His rushing out and reflexes mean he'll be better suited to dealing with strikers getting in behind your defence if your defence is naff. And his communication will help marshal your defence.