datsme40

I have a Trek 7.2 from two years back. Also 6' 330lb when I got it. The beefier tires on it (compared with a road bike say) will easily support you.

I've been riding a road bike for the last 6 months (still in the 320 range) and have had zero problems with a 32spoke Mavic road tire(stock on the Felt bike I bought). I asked the shop about it and they were pretty honest about it. You either pop spokes or you don't. Ride the stock wheels until you prove that it is an issue. They had only had one bigger guy in the last 3 years with issues. Ask the shop what they think!

Taking a closer look at the bikes that you listed, I would not expect any wheel issues related to weight. None of those bikes have the 'skinny' tires.