I offer the liberal enlightened centrist conclusion: all the companions are cool and good, though I think Raul, Gannon, & Veronica are my favorites. Hard not to take Boone sometimes though; the highlighting enemies is nice, him killing enemies before you even know they're there is nicer.
Fuck! How could I forget that? Nvm boone is also GOAT. Mad respect for when you're approaching Cottonwood Cove, or the Fort etc. and he says "I'm gonna start shooting" and you can just say "Hell yeah brother, me too"
I've been playing with a mod that allows you to have multiple companions active at the same time based on your charisma stat so I've been running Arcade/Veronica/Boone. I do love them all though, even though some companions really feel like they got a lot more love than others (Cass has like three times as many voicelines as either Lily or Raul).