Definitely MB
I've had a MB Urban (not Elite, weren't available when I bought it) for over 2 years and it's bomb-proof.
Really well made, good quality fabric & frame, had no faults/problems whatsoever, have taken it EVERYWHERE (beach, countryside, shops etc) It can cope with anything. So easy to push. You can even hose down the fabric if needed.
Shopping basket huge, love the adjustable handle, good quality raincover which actually stays on.
Baby/toddler doesn't slouch in the roomy seat, DS only 19mths but almost 2.5 stone and has loads of room left. DD 4.4 can still fit in it and I could still push it easily, although she isn't allowed
Few friends have had Janes and ALL have had probs with front wheel. Fabric looks tacky compared to the MB. Basket is small. Their babies always seemed to slide/slump down in the seat when younger.
I'll be gutted when DS no longer needs ours