We won't really know until the announcement on Wednesday, but the speculation seems to be that only Biggio has a chance to make it. Well, Jack Morris too--which is on a whole different level of inanity, because he might not even be in the top 20 in my mind.
I agree with you, though...there are no less than six no brainers: Bonds, Clemens, Bagwell, Biggio, Piazza, Raines. There are five more I would definitely want on my ballot: Trammell, Sosa, McGwire, Schilling, Martinez (and really, I don't see a reasonable argument against anyone but maybe Sosa and McGwire here). I'm on the fence on Lofton, Walker, and Palmeiro, and McGriff, but I'd lean towards at least Walker and Lofton being deserving. I understand the cases for Murphy and Mattingly since they did have a HOF quality peak (but not much else). That makes 17 guys who I wouldn't have issue with going in.
That doesn't even account for the significant support Morris and Smith get, even though I don't think they're particularly close to being deserving. And if Morris is ultimately inducted, he's 22nd in Baseball Reference's career WAR among players who are currently on the ballot...so by that standard, there's an argument (albeit a pretty weak one) for the other four guys who compiled a higher WAR than him: David Wells, Bernie Williams, Steve Finley, and Julio Franco.
Bottom line...if no one goes in this year, it's just another sign that the HOF is past it's usefulness as anything other than a place to see a few baseball novelties and oddities. It certainly is no longer about honoring the best of the best. If just Morris goes in, that might be even worse.