I stopped playing after the memory den quest, so I can't say anything beyond that. The quests I played mostly involved just using my gun. I remember only two exceptions, which were nice.

How do you find and deal with Benny, compared to Kellogg?

I feel how you deal with Benny is a bit better than with Kellogg but Kellogg is a more like-able character, probably because he actually had a backstory that we got into. (During that quest, I made sure to click on everything in each scene and listen to Kellogg's thoughts). Benny was just... A pretty simple character honestly. I usually just take him out because he wasn't much of anything like how the start of the game made him out to be.

Of course it is similiar (to 3 and 4), it's built around the same skeleton and shares mostly the same skin. It's too similiar even, if you ask me. But it's what that bag of bones is filled with that makes the difference; it is built with and around a different attutude. If people could actually look past the surface (and generally play these games for more than just the map - the chief complaint of NV - and what's visually rubbed in their faces), this would be obvious.

Fallout 4 and Skyrim are completely different games. Sure they do share some similarities. But a Fantasy RPG and a Science/Horror Fantasy RPG are 2 completely different games.

Don't forget Pong