Okay...wait a minute, Matt. You just mentioned the reason Luthor WON'T be the villian in the rest of the sequels. As you said, he's a two-bit con man which excludes him from being the most powerful human on earth.
However, my problem with your statement is something else entirely and I'll say to you what I said on another board. It doesn't apply to SR, but you'll get the drift.
I'm not really sure how I feel about it to be honest. Stylish, Batman-esque Superman villians that aren't really powerful don't work well in the Superman universe, IMO.
Well...I take that back. A stylish villian who isn't Luthor doesn't work well in the Superman universe. And this is what I think the main problem is with some writers. Why does every good diabolical plan have to come from Luthor? You mentioned "Ending Battle" and you know...I forgot Puzzler was in that too....this villian just keeps skipping by me, though I do know who they are...lol...force of habit I guess
Anyway, Black totally mind f-ed Superman. He was a good villian because he brought the battle down to his level. Heck! He was smart enough NOT to fight Supes outright. He sent others to do the job. Some writers think it's their mission in life to de-power Supes so he looks like a damn chump so they can have some idiot villian...but an idiot villian with style....beat up on the MOS. It's asinine, really! Why not just give him/her a good plan? It's shouldn't be unheard of for someone aside from Lex Luthor to think up a good plan?
Again, Matt...I know you don't think Luthor's plan was all that noteworthy, but it fit with his characterization from STM and SII, and it was a good plan in that it could have worked. It doesn't mean he's the only one who can come up with one. Also, judging from the piece of NK floating in space, I think there will definitely be a toe-to-toe battle with someone who is Suped up and ready to fight the MOS.