Looking at cedar now as I have Spruce...so different to my ears. Of course, this is all the conjecture of a newbie (who gets to hang out and play ukes at the music store if I want...figure I own half of it) Spruce gets the point across, and is great on some songs with it's punch and brightness. I like the cedar though for it's warmth. It is well rounded in tone to me, whereas Spruce seems to accentuate the upper and lower tones. Spruce is great for me as a beginner- I find it less forgiving than my Mahogany (really gotta mean it forming clean notes), but the notes on a cedar seem to blend so well. I played a Bocote Kala the other day and had a similar impression, but really like how cedar looks.
Guess the Uke leads to one becoming a tone-wood junkie, and at this stage I cannot really imagine not having both.
Likely to change (or be defeated by the boss).