Ted didn't play infield. ;)
In any case, even if we stipulate that Williams was a better hitter than Banks - who can deny it? - it's also pretty clear that Ryno was nowhere near the hitter that Banks was. It's all about where you draw the line - if Williams > Banks > Sandberg, where should we draw the line for Hall of Famers? Personally, despite his fielding ability, I think Banks is clearly in, and Ryno's right on the cusp. You're of the opinion that Sandberg is clearly and obviously good enough, and I think he's kind of marginal. That's what's great about this country - I can have my opinion, and you can have yours, no matter how wrong you are ;)
When you get around to looking up the stats of other Hall of Fame 2nd baseman, I will leave you with this. Even Babe Ruth didn't have a unanimous vote into the Hall either. BTW, how old are you? : )