Randy,
I have 2001 F350 SRW right now. If I were buying new today I would look at F450 or F350 DRW in that order. Chevy or Dodge equals are all great TV, just matter of what preference you have.
The price isn't that much different for the F450 vs F350 DRW, if you are looking at diesel engine. Diesel and DRW is standard on the F450, so when you add those to the F350 there isn't that much difference. Haven't price both out for a long time, since I will keep my 2001 for another 10-15 years, it only has 61,000 miles on it.