+1 Lodestar. I too looked into this debacle and ended up with the lodestar. Using my RC8 which has a focal length of 1.6m and a 50% secondary, I have yet to point somewhere in the sky at my light-polluted backyard and not see a star with 2sec intervals.
My only issue is that the huge pixel size of the lodestar means it's imaging scale is quite larger than my 8300 sensor, but nothing good PA cant solve
Best advice I can give is don't think too much about it, both are capable and once you buy you will forget all this hassle of researching. If not then their second hand value is pretty awesome and you will have a minimal loss!