Bad teams need to be rewarded. The idea of the wheel or reverse lottery (14th team gets best odds) is ludicrous. Teams from NY, LAL, CHI may be able to prosper through free agency signings, but how would teams from Utah, Minny, OKC, etc ever survive. They would constantly be horrible.
I don't have a real problem with how it works now. Better teams in the lottery still have a 'chance,' but not like the worst teams. I think it could be adjusted where there are groups of teams, like: 1-3, 4-6, 7-9, 10-12, 13-15, 16-18 - each having equal odds withing their groups - where the worst teams have the best chance and the better teams have the worst chance.
Unlike now, I wouldn't limit the better teams' chances to only a top 3 and I think you could adjust the odds back to pre-Webber/Penny days. I also like the idea where teams 15-18 don't get rewarded with trying to make the playoffs even though they have little incentive to do so.
I also agree with limiting consecutive top 1-2 picks (if they are your own).
I really just hope it isn't some major, wacky change. Bad teams can't get better without the option/hope for a top pick.