It has taken us two months of hardcore research to answer this question with an educated guess. The answer for our family is the City Mini.
1. adjustable handles: okay b/c the fixed height works if you're tall like us
2. air tires: the City Elite (one model up) has air tires but was too heavy for us
The City Mini is one of the lower priced models in the "lightweight-plus" category. The Bugaboo was a strong contender for its quality and smooth steering until after multiple failed attempts at locking the front tires in place in order to move onto the "quick fold" I had red, worn fingers, no more patience and was wondering "where is my baby while I'm doing this with both hands"? For $600-700 they need to fix the plastic lock-grips!!! Are you kidding me??? It was a deal breaker.
I'm not bashing on the Bugaboo. It did make it to the #2 spot. The final push for the City Mini was seeing six of them in use by NYC moms today. One CM-mother even jumped in when she heard us speaking to our rep. When she overheard our conversation with our rep with our criteria, she tapped me on the shoulder and began raving about her City Mini. Our rep then told us it's the number one seller in his store for NYC moms because of its weight, fold and functions. SOLD.
My apologies for the lengthy stroller post, but I must say, I was eager to read personal details when doing our research. Our info may not apply to 90% of those reading this, but for the 10% it makes sense to...I would love to hear your stroller choices and feedback.