If you are alone 90% of the time, skip the bunks. They will offer storage when parked if no one is sleeping on them, but otherwise they are wasted space.
Our 32' Greyhawk has bunks and 2 slides. The floor is flat from front to back, the only step inside is from the cab to the house. I would not want a step in the middle of the coach. I've never seen a Class C with a step like that.
When the kids were little the bunks were great, they actually used them. Now that they are bigger, they don't use them. They both complain they are too narrow (they are about 10 inches narrower than a standard twin bed). They are rarely used for sleeping anymore and it would be great to have that space for a desk or pair of recliners. Basically now they are for storage.
As was mentioned, jacks are standard now on the Greyhawks. Unfortuntately, they were not in 2009. Probably 35% of the campgrounds we stay in have sites that are completely level. We stay in plenty of state parks that are not. If the site is dirt or grass, even if it looks level, it might not be. The next motorhome we buy, no matter what it is or how big it is, will have auto leveling jacks.
-Michael