Don't the paradigm studio series sport vinyl finishes? I don't think you get real wood in Paradigm until you get to the Signature series.
At any rate, as a previous owner of B&W and the Paradigm Studio line (Studio 20 v3), you'd do well with either I would think. I don't think anyone would or could make a case that one is a clear winner over the other as they're both pretty solid...just a matter of taste. Personally, I'd lean towards the Studio series, but that's just me...you're doing the buying so you need to satisfy yourself. I'd take some material you're very familiar with and give 'em both a listen and see which one stands out most to you. Good luck.