Och, no, Easter is a movable feast, laddie. Can't have the year beginnning different days all over the place
I'd like it. I love Spring, all the girls start wearing lots less clothing.
I remember the best New Years ever was in 1992. Seventy degrees, little cocktail dresses, very nice.
New Year's would be a lot more Pagan. It's already Saturnalia, with the drunkeness and Dionysian revelry, but its a midwinter thing so there's the Life-in-Death motif. Easter replaces the Fertility rituals, but we also have the Holy Week business and Lent leading up to it. That's the requisite Resurrection schtick, yes, but Xtianity turns it into a real buzzkill instead of just the normal backstory for rutting in the fields
I dunno, I dont' think it would make much difference. OTOH, given Spring temperatures and symbolism you might have some ritual nudity, maybe even sex as part of a Xtian ceremony, wouldn't that be different?.