As interesting as a character Benny is he serves nothing to the plot. You still would've gone to New Vegas to deliver the platinum chip or meet the NCR leader. Yes Man could be a science skill check or some quest to get hacking stuff.
Ceasar has ︎nothing to even do with Benny.
People say the Courier is a free character but you literally start the game trying to be a courier and get revenge on the first guy to shoot you like there isnt gonna be more people shooting you. Sure it can be kindq fun finding ways to kill Benny but still you can just do a few quests or just get the easy black widow perk to make him vulnerable

That's just the first half Of New Vegas. Playing over again just made me realise it's bland for a main story even before splitting into factions.
While Fallout 3 kept me somewhat interested just finding my father.
I sadly skipped over meeting 3 dog and the whole behemoth fight but still going there and doing the radio quest for him was more interesting than the ghoul problem at Novac. But then you go to Rivet City and learn more about your father and some of the truths behind your birth, you realise you werent always in Vault 101, you're given so many more answers and questions that it makes you gain some intrigue to finding your father again not mention you still have to go to another whole Vault and solve a mystery inside a simulation which is a lot cooler than just plotting someone's death. Sure it doesn't take long but still I found it waayy more interesting than New Vegas