It's an old and tired and mostly disproved argument that you're just regurgitating here. The fans being split doesnt matter a lick considering fans make up what? 5% of a film's audience? And if the fans were as split as you say, then Welling wouldnt have nor would he continue to this day to dominate any kind of polling done on casting on any neutral site.
Smallvile = the longest running superhero genre show of all time with 200+ episodes (much less the longest running Superman entity of all time.) Syndicated the world over and for 10 years has been a top DVD and iTunes seller. Not to mention it's one of the most recorded shows on DVR's.
Superman Returns = Had a dragged out run in theaters just to reach $200 million in ticket revenue, and failed to make back it's production budget. Had lukewarm DVD sales and any plans for a sequel were scuttled shortly thereafter when the studio announced they wanted to make more Superman movies just not with SR's production crew or have it affiliated with the prior film.
Yeah, the two are EXACTLY alike.