I like #1 and for something unique #4 not that several of the others don't look good also. It would be a tough choice for me, but I love beautiful wood grain grips. Good luck!
For a practical carry/fighting gun, go with the Crimson Trace grips. They will help in low light and night situations better than anything else. On the other hand if the gun is a daytime carry gun, rarely seeing night service, then go with something fancy.
I have some custom micarta grips, they are OK, not terrific looking but good to hang onto. I prefer half carved fancy wood grips. I like half carved because if you shoot a lot then fully carved or fully checkered grips can take a heavy toll on your hands under the recoil of a 45acp.
Smooth grips are great, as long as you can hang onto them. But they can be slippery so I don't recommend them for a primary weapon. Great on a show gun or an occasional carry gun.
Epsylum always liked slimline Aluma-grips for carry. I agree. They are not fancy but you can really get a good grip, wet or dry. Unless you have a really big hand, the slim line style works better for most in self defense situations. I like the original checkered styles for target but not on a carry gun. Color is a personal thing, do what you like best.