Like others, my busy cutting season is winter. Cool enough to cut and split for hours, snow makes skidding easier, knocks down the briars, fills in the low spots of the trails. And, best of all, the bugs are gone. I cut 3+ days a week from December to April. Now, over the summer, I mostly only cut to clear storm damage. I often don't know when I might next start a saw after putting it away. I always run an No-E fuel mix, mostly TruFuel, and generally like to saw to empty. I've always got something laying around to buck up, or a stump to clear, so I can easily finish off a tank.
So, for me, I mix synthetic oil with fresh high octane E10 gas for winter when I'm running a couple tanks a week, and switch to the expensive pre-mix without ethanol in the summer.