Some prefer active. Some prefer passive.
IME, "budget" actives (Event, Mackie, etc.) are less thrilling than a good set of boxes with a nice amp.
The higher end actives (Genelec, ADAM, Barefoot, PMC, etc.) have much higher quality amplification, more headroom, MUCH better crossovers and generally much MUCH better translation.
IME, YMMV, yada, yada, etc., etc.
That all being said - In
the severe budget category, I've found that M-Audio's BX8's and Wharfedale's Pro Diamond 8.2's are quite decent sounding boxes - Although the QC on both leaves a lot to be desired...