The leon is an old car now and quite dated imo. (bit like the mk4)
I would go for the megane 225, they may have their own specific issues but the leon is on the mk4 platform so are riddled with niggling problems also!
People always bleet on about re-maps, both cars in standard trim, the megane is quicker, handles a lot better and a nicer place to be. Also they are excellent value at the moment, plus you have the choice of 3 and 5 door.
If we are doing pictures....
You are completely right mate and I think the Megane looks more respectable (I am 31!) that black one is sweet! Every car has known issues... I am looki g forward to driving both to compare, if I can find any close enough to actually look at!