I think KDE is… I have 64GB RAM, an i7 processor, and a 1TB SSD hard drive. I like the Window effects on KDE that’s what makes it “better” in my opinion. If I had a 486 processor with 2GB of RAM and a 4500RPM HDD, I might change my mind as to if that is really “better”. Right now I don’t mind the “bloat” as long as I can have wobbly windows, animated minimise and maximised windows, bell + whistles, etc… Ever since I moved to Lumina full time, that’s the only thing I miss from KDE is the animations.
I have to admit I’ve been running WindowMaker as my windowmanager on pretty much anything *nix for along time. My home brewed FreeBSD desktops, various Linux machines at work, probably even on Solaris at one point. And now on TrueOS.