I have not tried the Silver Star or Timor blades, so I cannot comment on them.
I just finished up a tuck of Silver Stars and get 4 very nice shave from each blade. Definitely one of Lord's nicest blades.These blades for me are just right in everything from a Gillette Tech to an r41 due to them being both sharp and smooth:
1. Polsilver
2. Gillette Platinum
3. Gillette Yellow
4. Silver Star
5. Timor