Thanks for your great input! Indeed, my original question was a little different, this was due to the reason that I did not know about collecting award miles to MM and collecting PPS value at the same time would even be possible.

And indeed, I knew that I may not qualify for HON by flying SQ.

However, I easily qualify for HON even without going to SIN on LH. Therefore, as I mostly fly F to SIN (and there is no F on LH), and SQ C product is much better, I use SQ all the time since Singapore opened up and LH does neither provide any frequency nor an F product on this route.

Now it seems I just need to decide on where to credit award miles to, as I will qualify for PPS even when crediting to MM. This is really great news.

It is great to see that such a valuable input is available from all of you! Thanks a lot! I would never have had even the idea to credit to both programs.