Another Maclaren lover. I went to the store to find something to work with my bad back, my 5'10" height issues (most umbrella strollers are too short) and came home with a Triumph. It folds small, lightweight, has an arm strap (if you're holding child and running through cold/rain to the mall, etc), has a wind/rain guard (in case you don't want to run), spins on a dime and holds a child up to 55 lbs (my 7 year old just outgrew it).
The Triumph has two settings so I can recline the back if my child is sleeping (I believe that's the main difference between the triumph and the volo).
I've heard good things about Chicco, but the max weight was 35 lbs. I've had this stroller for 3 years, haven't regretted it once (had lots of previous stroller regret) and recently purchased a double (rally twin) for my new twins.
PS I know it's expensive, but they also last (and guarantee it)-a friend had hers broken and they replaced the frame (fabric was fine) for free.