Depends on how warm you run and where you live, but overall i’d say SS + arm warmers is by far the most versatile. I find mine great, would buy again – BUT, its not as water resistant as it should be. Aparantly the waterproofing is a bit hit and miss, almost as though they have quality control issues applying the DWR at the factory. Totally windproof and warm even when wet though.
If you can find the louis garneau powershield version its a better top imo, more breathable and better waterproofing. Think the polartec material is just superior to Windstopper.
As @Rorschach linked, the 2015 endura version is a bargain at that price. Fit isnt quite as good, and material is a bit odd, but it works a treat.