Only reason I see to get a revolver would be if you wanted .357 magnum, although even then there is 1 automatic designed to fire it (someone's college project put into production I believe).
Beyond that, the issue becomes one of shot number. Revolver 6 - semi auto around 15 depending on the calibre, mag and gun, plus slower reloading on the revolver even with a speed loader. That's primarily why semi-autos have taken over. You can also probably add onto that, less to snag onto clothing. You might wonder why you might want more than 6 shots - experience has shown that often shooters miss under the stress of a fire fight plus many handgun bullets are notorious for poor stopping power unless something vital is hit.
A good example of this is this Police firefight - not how many times this guy is shot and yet he survived. Slightly long video but worth the watch. Demonstrates how handguns can struggle to stop someone though as this guy is riddled. This does have video so be patient over the audio at the front. If you want to skip the recap tempter at the front which misses out a lot anyway but does have good audio, video starts properly at 4 mins 30 sec approx.:
There are also good alternatives to .357 mag such as 10mm if you want auto.