Sounds like you've got some good gear there. TC Electronics always makes great sounding effects, really clear. I'm not familiar with the Nova System, but I back their brand. But BOSS makes great stuff too and they've been around for a long time, kind of a classic.
You may consider ease of use, if you're not a technical person that might be a factor. I find myself bogged down with too many choices when I just "want to play!" :D
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