Ok, here we go...time to speak my true colors:
Ghouls N' Ghosts
Streets of Rage/Bare Knuckle 1-2-3
Street Fighter 2 Special Champion Edition (Hey the controller is better and plus that's two games in one cart)
CASTLEVANIA BLOODLINES!
How could you all leave that beautiful game behind?!? (aka VAMPIRE KILLER)
Contra Hard Corps :woot
TMNT Hyperstone Heist <--- sooo much fun
Rocket Knight Adventures :hat
Sparkster: Rocket Knight Adventures 2
ThunderForce 2-3 and 4!
Sonic 1
Sonic 2
Sonic 3
Sonic and Knuckles
Sonic 3D Blast
Sonic Spinball
Dr. Robotnik's Mean Bean Machine
Altered Beast
Golden Axe I and II (Import part 3 please, it's very good)
Space Harrier II
Revenge of Shinobi/ Super Shinobi
Shinobi III/Super Shinobi II
Alex the Kidd in The Enchanted Castle
Mickey Mouse in "Castle of Illusion"
Mickey Mania
Quackshot
Phantasy Star II and IV
Shining Force I and II
Kid Chameleon
Columns (I get so lost in that beautiful game..the music just sucks me in)
Earthworm Jim
PulseMan (Import only, but GOD IT'S GOOD!)
Rock Man in Mega World/Mega Man in Wily Wars (Yeah I owned it, it was beautiful and awesome remake, cost me $65, but hell ya)
Maximum Carnage
Gauntlet IV <-- perfect port
Samurai Spirits/Shodown <--- I perfer this one alot over SNES because of the control schemes and the characters are larger in sprites
Shadow Dancer: The Secret of Shinobi
SPLATTER HOUSE 2 and 3! Omg How can you forget this awesome title!??
Stirder and Strider 2 ROCK!!!
Alien 3 <-- much better then the SNES verison
Disney's Aladdin
Double Dragon <-- nice early release port
Dragon Ball Z: Buyuu Retsuden (Hey I dont like the cartoon, but the original 16-bit fighters were cool WAY before the cartoon was americanized)
Ecco the Dolphin 1 and 2 woot!
Crusader of Centy <--- Sega's clone of Zelda LttP, and its a GREAT game!
Spider Man
Spider-Man & Venom: Separation Anxiety
X-men 1 and 2 woot!
I probably missed a few, but that's all the favorites I have