So apparently I will soon join the club.
Yesterday I "won" a Duo-R on ebay, hopes everything works right.
Close tie for 3 and 4 love both
From the videos I've watched it seems to me:
I (remake)= III > IV > II
I looked into the pc engine library and here a small list of games (not available on western VC) that seems interesting:
CD (no arcade card)
Valis I,III
Last Alive/Alert (overhead shooter ala Smash TV)
Mystic Formula (overhead shooter)
Fausette Amour
Shape Shifter
Conan future boy (platform game based on the beloved Miyazaki character)
Flash Hiders
Asuka 120% (best original fighting game on the system?)
Shubibinman (Shockman) 2, 3 (2 looks like a Megaman game while in 3 the hero use a short range weapon)
Dragon Ball Z: Idainaru Son Goku Densetsu (for fans of the manga, really good presentation)
Ane San (a scrolling beat em up with females as protagonists)
Bakushou Yoshimoto Shinkigeki (a crazy platform game filled with japanese humor, too bad some part of it require to understand the language)
Renny Blaster (Sidescrolling beat 'em up)
Fray (sort of Kiki KaiKai)
Double Dragon II (best version?)
HuCard
Legendary Axe (can't wait to play it!)
Tiger Road
Liquid Kids (Good port of a cool platform game by Taito. So damn expensive ;_
Raiden (there is also a even better CD version)
Gekisa boy (curious game where you need to take photos to score more points)
Aoi Blink