You definitely went the better way with looking at a bit larger than ultracompact pushchairs - the Clic would be really tight and not too comfy for everyday use, being a travel, occasional use buggy. From your two options, I personally would rather go for the Mytrax Flex, as the Britax's B-Agile line is quite rattly, to be honest. The Mytrax is much heavier though, and the seatback could be longer, still it is a nice enough model for the money it costs.
Apart from that, I would suggest an Oyster Zero which is light, much lighter actually and agile but very roomy, and with a bit of suspension. Also, the Valco Snap is a light, spacious enough option that many moms like as a practical, even if simple, no-suspension one. And I will also suggest the Baby Jogger City Mini as it is one sturdy, nicely made pushchair.