I agree, Three Six Mafia esp. the albums When the Smoke Clears and The Unbreakables. Every song is good and hits.
Who Run It (has nice rolling bass)
I'm So High (pounds loudest.)
Bin Ladin (hits hard especially with 10"s)
Back the F%#$ Back
Late Night Tip (ofcourse)
Southside Riders
Tear Da Club Up
Who We Be
and of course, the hardest hitter of all time: Slob On My Knob
More Favorite Bass songs:
Trick Daddy- America (lowest bass I've heard, must have 15")
Twista- all the ones mentioned, plus Adrenaline Rush
Cash Money Millionaires- Project Bit#$, #1 Stunna, Get Your Roll On
Project Pat- Chickenhead, Ghetty Green, Life We Live, Ooh Nothin'
Ying Yang- all already mentioned, esp. Whistle While You Twurk
Lil Flip- U See It, 7-1-3
Lil Zane- Ride on 'em
May add more later.