I own both a Browning Hi-Power and a Kimber 1911, and have to say that the BHP is my favorite handgun--not just between those two choices, but among all handguns.
If you liked the ergonomics of your CZ 75, you'll likely like the BHP's even more. It's got much better ergonomics than a 1911, in my personal opinion, and is widely regarded by many as having the best ergos of any handgun ever made. That's not to say that the ergos of a 1911 are bad--not at all.
As has been mentioned, a BHP has a less-than-ideal trigger out of the box, but can be made very nice with not much work. It will never be as good as a 1911 trigger though, even with a professional trigger job. There's only so much that can be done with the BHP's linkages as they're designed.
The takedown and reassembly on a 1911 is very primitive for an autoloader, and much more difficult than on a BHP. I don't mean that as a criticism of the 1911, as it was very well-designed for its time (and still is, in all the ways that are really important). It doesn't take many takedowns on a 1911 to get used to it though. The most annoying part of the reassembly of a 1911 is having to get the swinging link lined up just right before you can get the slide stop reinserted. The second-most annoying part is having to stuff the recoil spring down the muzzle end of the pistol and hold it in place long enough to get the barrel bushing back in position. Again, this is easy enough to accomplish once you get used to it, but the BHP is a huge improvement in that regard, and is much faster.
The comments about 1911's being potentially finicky and needing work to become reliable is accurate, in my experience. I haven't had to do so much work on any other handgun I've owned, before I've been comfortable using it as a defensive weapon, and while it works perfectly with some ammo, it won't chamber other brands at all, at least with certain mags. Some magazine brands work fine with it, others don't work at all. My BHP has worked nearly flawlessly right out of the box, with every ammo I've tried, and with different mag brands. When I say "nearly," I mean that out of about 2,500 rounds that I've put through my BHP now, I've had 4 malfunctions, and at least 2 of those may have been my fault. That's a 0.16% malfunction rate, which is good enough for me to trust my life on.
For firepower, my 1911 is a 10mm, which blows the BHP's 9mm out of the water. My 1911 only holds 8 rounds in the mag though, compared with 15 in my aftermarket Mec-Gar BHP mag. Considering that even trained police officers can miss their targets on more shots than they connect with in a stressful situation, the average civilian would be a lot more inclined to miss. So more rounds in the mag are arguably better than a few rounds of larger-caliber ammo. Many people here will vehemently disagree with that, and I won't argue with them--it's just something that everybody needs to decide for themselves.
If I had to give up every handgun that I own except one, I'd keep the BHP.