I refer you to this YouTube video comparing displays of the MacBook Pro 13" and MacBook Air. This compares the 11" display, which, aside from PPI/size is "the same" in terms of quality as the 13". The 13.3" with 1280x800 resolution is, to me, a complete travesty.
http://www.youtube.com/watch?v=JHNdgJCKkZQ
4GB is not more than enough, anymore? Just because Lion WILL use the memory, doesn't mean your computer won't function correctly without it. Again, ask my wife, who is a heavy user, with her "paltry" 4GB 2011 MacBook Air. I have 16GB in my iMac, for what it's worth, but only because it's so "affordable."
And we're not talking about when SSDs become "affordable." We're talking about now, and my above statements still stand. SSD is the single most important upgrade you can make to any recent computer. I'd take an SSD + 4GB RAM over the 320GB 5400rpm (in the MacBook Pro 13") + 16GB RAM.
As an aside, I think the 2011 13" MacBook Air is the absolute best laptop in Apple's lineup right now. It's a true powerhouse portable.
PS I would also request you refrain from personal attacks. It helps nobody.