I have two catchers who are both equally poor hitters, but what makes more sense defensively and with pitch calling.

Catcher 1 - 34 Glove, 46 Strength, 65 Arm Accuracy, 94 Pitch Calling
Catcher 2 - 34 Glove, 81 Strength, 79 Arm Accuracy, 90 Pitch Calling

If I understand the game correctly, 94 PC should save some runs, but if teams steal all day on me, is it worth it? Is one better than the other or should they just split the time 50/50. Any thoughts would be appreciated.

The difference between 90 PC and 94 PC is marginal. Go with Catcher 2 because of the better arm.

Yeah, that's no even a question unless it's 94 PC to 44 PC. And I still might be tempted to use the 44. Catcher 1 will give up SB after SB. Every single/walk is a potential double.