canuckystan,
Welcome to the Forums. Take your time doing your research. Ask LOTS of questions here and you'll get some great, practical advice from people who actually go RV'ing.
Yes, choosing the first RV can be a tough process. Give it time. From the time we started looking for our "first RV" until we finally decided, I spent about 2 years on these forums asking questions. We went from looking at small hybrid trailers to tow behind our Honda Odyssey to Travel Trailers towed by a full-size van, to Class C's and then finally we decided on the 36' Class A gasser in my signature TOWING the Odyssey. But due to our diligent research and the kind folk on this forum, we were able to purchase the right RV for us the first time. That's not an easy task, as you're finding out.
When we bought ours back in 2004, the majority of people didn't think a Class A was right for a family. And, quite frankly, there weren't many "family friendly" class A floorplans out there. But we found our dual-sofa layout to be a perfect solution for us. Now, almost 15 years later, I've yet to find a floorplan that we like better that would work for us (within our budget).
I had mentioned length in my first post. Unless you have a real solid reason for keeping the rig short, I'd highly recommend something in the 32' length, at least. You'll have both a dinette and sofa for sleeping arrangements, so you'll solve that issue right off the bat. Plus, invariably more storage for clothes & supplies, and perhaps more counter space for meal preparation.
If you have any pets, you'll appreciate the larger space as well. Over the years we've had the motorhome, we've always had a dog or two (medium size), so having extra space allows them to "find their spot" and hopefully not always be in the way.
How old are your children? When we bought ours, our youngest was less than a year old. So wifey insisted that whatever we buy have room to store the double stroller and actually set up the PlayPen(itentiary). LOL Our three youngest were all in car/booster seats, too, so seatbelt number & location was important. Our rig came with 12 belts: 3 on each sofa, 4 on the dinette, driver & passenger. Carefully check for the number and location in any rig you have. The kids will probably want to sit in different locations during the journey, so having an ample number of belts is important.
Well, as you're finding out, there's LOTS to think about. I liked the class A motorhomes over the C's as they generally give everyone a much better view out the front windows while travelling. But passengers in the living area of the rig should have decent windows to look out too.
Also, when looking at units, carefully check how accessible things are when the slides are retracted. Some units make access to cabinets, drawers and sometimes even the kitchen sink and bathroom difficult when the slides are in. We do overnight at rest areas/Walmarts/Flying J's/etc. when we're doing long trips, so it's nice to have access to as much as possible with the slides in.
There's probably hundreds of other things you'll need to think about, but just keep doing like you did on this post, and ask.
Good Luck,
~Rick
2005 Georgie Boy Cruise Master 3625 DS on a Workhorse W-22
Rick, Gail, 1 girl (27-Angel since 2008), 1 girl (22), 2 boys (23 & 20).
2001 Honda Odyssey, Demco Aluminator tow bar & tow plate, SMI Silent Partner brake controller.