[bcrdukes]

1. I run 23s. No real reason. They were available and on sale.

I'm running HED Ardennes+, which are a 25mm wide rim using a 23mm tire (Michelin Pro 4 Service Course.) I've found that 25mm is "comfier" but comfort is a very subjective thing (too many variables.) I did find the rolling resistance to be better, however, these were on these specific wheels. I can't speak for others.

2. I run 11-25. Tried 28 as well. I also run a standard crankset (53/39.) I have compact and mid-compact chain rings and for commuting, I prefer mid-compact. I don't like compact anymore.

Why did I go with this setup? I ran out of gears too often and it didn't let me push out the power I wanted to. I am by no means a fast rider but after going standard, I don't like going back. Like dton13 said, gear ratios are a very subjective thing. I would encourage you to experiment if time/finances permit.