Ive owned a 220 and have a G21 both very nice but completely different, I actually prefer my G21 the size, weight and capacity is great. My close friend has an HK45, in hand its probably one of the most comfortable full sized pistols I've held, but at a cost of course.
For carry purposes I'd recommend the polymer one you like the best due do weight, best of luck to you
For carry purposes I'd recommend the polymer one you like the best due do weight, best of luck to you