Seiki = would not bother. Sharp and Vizio are comparable IMO, and I'd probably choose the M series Vizio over Sharp. For the E series Vizio (I own one) they're good for the price, but not as good as the M series for PQ and I'd say mid to higher level Sharps might be better, but you'd have to compare. Samsung has the best panels out there and Sony gets their panels from Samsung, so those would be my picks for best PQ.