Unless one could get the Maxx 3 very reasonably, the improvements included in the Alexia would be where I'd go. The new tweeter in particular. The Sasha 2 has a variation of the new tweeter, which by most accounts is a step up from the one used in the Maxx 3 and Sasha 1.
While the Maxx3 would still provide the most powerful low end, whether or not that trumps a smoother upper midrange/high end is a personal choice.
While the Maxx3 would still provide the most powerful low end, whether or not that trumps a smoother upper midrange/high end is a personal choice.