There's also some great real wood bamboo tops out there...got some great samples the other day. Certainly not maintenance free...but hey...friggin wood man!
I like the Silestone (quartz) products better than granite or anything else for that matter. Looks and feels like granite but without any need to seal etc. True 1.25" slab.
If ya'll are gonna throw out other options, I'll toss out soapstone. Did my counter out of remnant pieces (our kitchen counter was
far too small for a whole or even half a slab), and it turned out fantastic, even though I was the one who did it (just need a few wood working tools)! I see all the flaws in it of course, but everyone who's seen it has commented on how well it turned out (and most importantly, the

loves it).
It's pretty maintenance free, needs mineral oil periodically but we don't even have to do that too often anymore as the stone naturally darkens with time. The only big concern with soapstone is that it's fairly soft, so you
can scratch it. I've found that 99% of scratches are practically invisible if the soapstone is oiled however. And it's impervious to anything else (heat, staining, etc).
Silestone is cool stuff, we considered that but it was a bit more expensive than we wanted to spend and it didn't fit our house (we're trying to keep it matching historical home designs as much as possible). That was high up on our list for counters.
I really like concrete, but it's a pain to work with and it's incredibly heavy. Plus the quotes I got were outrageous (higher than anything else, by far).