With the caveat that I haven't heard any Revels I don't consider any brand better than Revel, just different. Revel is probably as good as it gets with passive speakers with limited size and with focus on wide, even dispersion and power handling.
You can do the same quality with different choices, like higher sensitivity, better controlled vertical dispersion but more limited dispersion width, better damped cabinets etc.
Without going bigger and heavier, there's compromises needed to be had to reach that level of quality.
Active speakers can take some short-cuts that demands less compromises, so can be made even better (for less) and will likely always have greater potential given same care during design.