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Having owned various SCT's and refractors and a couple of Dobs over the years, and currently owning a Tak TSA-120 and EdgeHD 8", I'd suggest the 8" Edge as a high quality all-rounder. The Edge has sharp, high contrast optics and it's significantly brighter than the refractor on nebulae. I can't say which one wins on Jupiter as I haven't stable air to properly compare.
I traded my first 8" Edge to get the TSA-120, then I bought another 8" Edge and both have had top notch optics.
The only potential problem with Celestron scopes from the last few years is that some of them develop a film on the inside of the corrector due to outgassing from some internal component of the scope. It cleans off easily but the corrector has to be removed to do the cleaning. If the scope is stored in hot conditions (eg. hot car or observatory) the outgassing is more likely.
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