Are SACD's too clean and sparkly on top or do I not know what neutral is after listening to live music for many years in crappy rooms and, of course, listening to redbook?
As always the original recording and mastering are the key element, but all things being equal SACD's in addition to your description are more open and full bodied.
There's no such thing as "too clean." Sparkly could be any number of subtle distortion masquerading as high end detail (though I usually associate this with tweeters myself). Lord knows there's enough noise hiding out on SACDs, but, like everything else they hold that's not on Redbook, it's supposed to be out of the audible range.