Yep, he's Tommy Dreamer with occasional wins. Works his heart out for the company, nobody more loyal, criminally mistreated.
I thought the ECW Title was perfect for him, it give the illusion of him being a world champion and thus he can be proud and have a place in the company, but it isn't on the level of the main two titles so they don't have to put him with the main guys. He could be portrayed as the monster he once was against lesser competition without him having to go over the guys they see big things for on the other two brands. ECW was, in my eyes, televised developmental. It was full of youngsters getting their first break, established guys who had gone a little stale, and veterans who were just jobbing on the main brands. Any of those three could get wins and they are both meaningless and meaningful at the same time. Infinite experience for the youngsters, a chance to re-tune and repackage for the stale, and the veterans can both pick up some wins to remind the fans why they have a job, and of course there's an old saying that you only improve by working with people who are better than you, so there's that too.
Kane was both stale, and a veteran, and he went to ECW and both dominated and helped elevate younger guys. It gave him something to do and re-established him as a powerful force if you ask me. It's unfortunate that there is no equivalent title for him to hold now.
Might have been nice to have had him be a pro on NXT. Sounds odd at first, but A) He looks all the more dominant when he destroys the rookies, B) It would be amusing to see him doing his pyro and scary stare thing while a green rookie stands next to him looking afraid, C) He could physically threaten his rookie if they don't succeed, really light a fire under them to to speak.
I think Kane would make a good challenger for Swagger, as he would any champion. He's been underused as an unsuccessful title challenger in recent years. I understand they don't want to put the belt on him, but he's big and bad enough to be a believable threat to a title so that when he loses the champion seems all the stronger. Despite all the losses he's had, it's easy to get him back there with a quick domination of mid-carders and a big Chokeslam on the champion.