I think your poll is crap...
other than that to answer your question, so far I have tried most of the Wiiware titles other than FF, Star Soilder, and the Critters game. Toki Tori is fun, but I like it much more on my windows mobile PDA, Dr. Mario is ok, Defend your Castle I have spent the most time on (likely because I never played it in my web browser), but Lostwinds wins hands down!!
LostWinds while short (if you do not get lost like I have) is the best WiiWare game I have played to date and amazingly Japan does not have it and according to Wikipedia there is no release date for it for Japan. Also I like the japanese brick deluxe game too... and TV Show King should be good to play with family since my family is not big into gaming.