Since I have one of the two you are looking at, I'll add my 2 cents
1 does having a door to both sides of bed matter? (242bhsw does 27bhs on one side)
It depends on what you are upgrading from honestly. We upgraded from a really old popup with rotting canvas and a broken lift system. Having 'limited' access to the bedroom really doesn't bother us at all. I would prefer if this floor plan had access to the bedroom on both ends, but the important thing for me (being 6'3") is the walk around bed. That was a *must have* requirement.
2 bathroom sink on outside (27bhs)
No issue for us at all. The only thing we use that sink for is brushing our teeth. It's actually nice that someone can be taking a shower or otherwise using the bathroom, and someone else can do what they need to do at the sink at the same time.
3 standard dinette and couch (27bhs) or u shaped dinette (242bhsw) on rainy days can four people by comfortable
We seat 3 adults and one teenager in our standard dinette no problem. There is also a 'table and chairs' option. That said, we have almost all of our meals outside, and always will regardless of the camper we own.
4 ladder for the bunk either model
There is no ladder for the top bunk in our model. This is easy to correct in the after market if you'd like. My 14 year old daughter has no problems getting in that bunk so we didn't add anything.
Favorite features for us are really just the overall floor plan. People can have their privacy when needed, the high ceilings.. I only bonk my head when I walk into the slideout, the massive amounts of storage, and the outdoor kitchen.
One thing to watch out for is that pocket door in the bedroom that a lot of people like a lot, is secured with a button strap that is stapled in place. Those straps will eventually rip themselves out as the door is heavier than the staples can handle if they receive moderate G Forces while driving. I drive extremely conservatively when towing and we managed to rip those straps out the first year, leaving the door to bang back and forth as you're driving. We haven't decided yet if we're going to replace the door with a curtain, or just do what I already did and use some industrial strength velcro to keep the door locked in the open position while underway.