Yep, if you want to jog, take it in the car and have an adjustable handle, the summit may be your best bet. Although Baby Jogger quality is mediocre IMO, they have lots of convenient features.
If you are not using it in your car much, I'd go with BOB or MB. Better quality and push with heavier kids. My BJ double listed to the side of the older kiddo and that drove me nuts.