One example often used is the Fallout UI mods and the method Gopher's Unified HUD used to fix the UI. MO is far superior in so many ways, as for the few issues, Gopher alludes to, these are long ago solved by a combination of MO fixes and workarounds or better mods not designed solely for the way other managers work. NMM is not technically 'better than MO' and likely never will be, for a 'power user' they're is no comparison.