I don't think Lange is more or less recognized 'by people' than PP, 99% of people on the street wouldn't know what either of them are. If you want recognition strap on your rolex.
Those of us who appreciate watches, and PPs in particular, will promise not to look down on you for wearing the Lange
Both watches are of very high quality, but I wouldn't buy either as an 'investment'. I would buy the one you like more, it sounds like it's the Lange...