If you're maybe unsure of whether or not a particular archetype/power combo is worth the time... play it on Test for a bit.
I do this frequently. You can just set your level, give yourself any kind of Enhancements from DOs to IOs, as well as the most expensive uber godlike sets... and play a few Lv 50 missions, over-world "hunting," etc.
This can help you not only decide if X is worth your time, i.e. did you enjoy it, but can help you plan out a build as well.
I do this, but honestly, I also have a few characters, (pretty much just the ones I'm only "meh" on and don't like enough to really put effort into), that just "live" there because I don't play often enough to farm enough Inf, (and I can't be arsed to do all these fancy Inf earning things), so not having to worry about Inf is enjoyable for me.