Piano Forum

I will attempt a proper reply at this since I've played several of these for many years.
The first issue we come across is EDITION. Whether it's Paderewski or Cortot, or urtext editions, the pedaling seems to be fairly similar across all editions.
The second issue is articulations. This would have to be compared from one to the other. Articulations are often critical pointers as to when it would be appropriate to get one's foot off the pedal.
Generally speaking, if the down beat has a staccato note, as in the op. 18 waltz, then surely the pedal should be off when striking that note/chord, or* at the very least some 1/2 pedaling could be employed.
In many spots a single 3/4 bar in LH has just one chord, with the usual down beat note/chord followed by two chords higher up. This pattern in Chopin's waltzes is a good indicator of what pedaling should be like (one harmony per bar many times). Again, I do believe that articulations should at least be a factor in determining this.
As a last point - one's instrument can be far too resonant with pedal on, and that means that one should be really trying to employ 1/2 pedaling much more. I've played on a few Yamahas where even in a single 3/4 bar with no chord change in LH the sound becomes muddy immediately; this even worse if RH is in the middle treble range where sustaining them just adds to the mess.

For now, I would suggest Cortot's edition, or even Paderewski's (good for the Nocturnes and Polonaises). Henle editions and Ekier ones are quite good in my opinion also.
I would stay away for now from Schirmer or Ricordi editions which many times introduce errors or corrections without much explanation; and pedaling marks are often found to be editorial. Other editions by students of Chopin like Mikuli or Klindworth (Liszt student) are of interest many times because of textual differences, but not necessarily pedaling.
I am open to any more questions and I'm more than glad to check my library for any of you.