Eye heart the Peppermill, but she's turned her back on me. Ahem. Long story.
I've stayed in several different rooms there. What was called the Montego Bay wing is now called the North & West wing. My room was decently nice, about as nice as a better room in downtown LV. It's a little bit of a hike from those rooms to the casino (or the exit, if the casino isn't your thing). The Peppermill Tower rooms are very nice. These are closest to the casino, though some of the hallways are long. I know you said suites were out, but they've often offered Tuscany upgrades for cheap (like $30 a night) or even free. The Tuscany Tower rooms are very, very, very nice. If you're a bathroom snob, these are your best option and probably worth the upgrade cost. These are also a good ways from the casino, so wear comfortable shoes. All the rooms have been upgraded in the past few years and they're working on the rest of the hotel. Which is kind of too bad, but that's another long story...