Absolutely not. If snowshoes are needed it is unlikely you will be on the trail in conditions needing snowshoes Said another way, if you have to ask that question then you SHOULDN'T be out on trail in those conditions.
I used micro spikes extensively on the PCT in 2011. They are great in the morning when the snowpack was rock hard, little if any help on ice and horrid in fresh snow. Why did I wear them in fresh snow, there was up to a foot of fresh snow on top of a rock hard consolidated snow pack and it was helpful with grip. But the fresh snow packed under the straps and I had no feeling in my toes for the remainder of the hike.
I used to do a lot of winter hiking on the AT from Ga up to and including the Smokies. If it were me starting early season I would take trekking poles for sure, micro spikes only if there was an old snowpack and be prepared to hole up on or trail to avoid major fresh snow.