You aren't that heavy (some here are well above that weight) so you shouldn't be limited by material. Though some ultralight parts may not be the best option. I started roadbiking when I was around 207lbs.

Second, you will have to try different frame materials and geometries to determine which one feels the best to YOU. Many arguments erupt here because of loyalties and 'myths' surrounding particular types of frame materials.

The best thing I can recommend is to first establish a price range and then try out as many bikes as you can within that price range and see which one you like the best.

As for your two choices listed above, the Trek 2200 is very nice since it combines carbon and aluminum. I can't speak for Felt since I don't know much about them.

Welcome to the forum!