Okay I got to Boulder City and the bartender told me they usually got people coming from Sloan but not since the Deathclaws took over, I got the Deathclaw quest (well, sort of a quest... more of a note) in Sloan towards the beginning of the game. Im level 11 and I cant take out these Deathclaws.. cant do it. Im just wondering if the experience in Boulder City is different if you cleared the DeathClaws out of the Quarry?

Small note, I cant even take them out with EDE and Boone with me.

Yea ur gonna have to wait for a few levels, and have Boone with you, cuz the Alpha Male roaming the area will take u out with one hit.

What im asking is, is the experience when you first arrive in Boulder City different if you clear out the deathclaws first?

I haven't run into any deathclaws yet and i completely ran past boulder city to explore so i don't know what bartender your talking about. BUT, i'd recommend laying off the deathclaws until your either higher leveled or decked out with gear. Everyone's pretty much saying deathclaws are crazy strong and will finger [censored] you when they get the chance

That's for you to find out! That's the beauty of fallout... every decision impacts the story! On the side note, probably not anything significant, probably just be liked or idolized like at Novac if you clear out the space station dump of a place.