The theoretical benefits of Gentoo or Arch are completely negated by the fussy nature of those systems. You have more control, but to get it you have to do a lot more work. I’m not saying that’s a bad thing, just that’s the main difference between arch, gentoo, and a more streamlined distro.
Really it depends on what you want out of your distro. If total control is what you’re after, then gentoo is only the beginning of a deep k hole that ends in LFS and a ricing habit. Personally I like using my computer as a tool to do other stuff so anything more hands on than debian stable just gets on my nerves or turns me into a ricing addict. But I had to install gentoo to figure that out.
Gentoo is a filter. You either love it and continue diving or learn you want something else from your OS.