I don't think Douglas really had a character. For the most part, ECW guys were loosely based on real life personas (except in the case of Taz). And Douglas was a pretty angry individual, especially from '96 onward. That leads to pretty great TV via promos. It was like he was saying what the rest of the guys in the lockerroom were thinking and from day 1, all the way back in 1993, Douglas was always touted as the future and the guy that would take ECW to the next level.
But in the ring, he was boring as fuck. I absolutely hated those matches with Pitbull 2. The 4 way at Heatwave '96 wasn't that bad until both Scorpio got eliminated. Without him and Jericho, that match sucked. I hated that gay ass belly to belly suplex. I can't think of 1 match from Douglas I actually liked. Probably the one the night Lawler invaded and Taz fought Sabu and immediately after beat Douglas for the TV Title. And that's only because the match lasted 3 minutes and the pop when Douglas tapped out was epic.
But, I still wish the 3 match series with Ric Flair happened. I'm sure those would have been some great matches, especially with Douglas being young and healthy at the time. On the other hand, I totally understand why Flair never wanted to do it.