I honestly dont understand why anyone would ever think a faster ratio is "too much". You cant have too much ov a good thing. Its not 10:1. 16:1 is a nice compromise. As for steering effort, even if it IS a bit hard, you get used to it. Before i started training, i had two mechanic friends, racers, both bodybuilders, both bigger and stronger than me. I had a manual box in my Charger with 295's up front and a tiny aftermarket steering wheel. Neither could move my car, without serious effort. Drove almost like power steering for me. You get used to it. Its not going to be 'twitchy' at speed (new cars can be well faster... no one complains there, its just more ov a good thing). At your size? No problem.

Get the 16:1 box. I'm going 12.7:1 on mine, and again... 295's up front, and a tiny wheel.