Right now? Hoffman felt liner pac boots. I wear those 6-7 days a week about four months out of the year. Really wish I could find a pair of summer boots that holds up like them. Just got a new pair this year, last pair lasted me fifteen years with having the rubber lower replaced I think four times. Leather on the old pair was still good, but the rubber lower was shot again, and the stitching was all coming apart on the uppers, plus one of the brass eye inserts for the laces had worn to a sharp edge that repeatedly cut the bootlace on one boot. Figured it was as cheap or cheaper to buy a new pair as have the old was rebuilt with all the issues this time. Also, although these don't claim to be waterproof my feet stay dry in them regardless of conditions unless I go over the tops of them in water, or I have a hole through the rubber lowers. I will say the new pair I just got have a MUCH larger rubber lower, even though it is the same size (10) as my old ones, the arch support insoles that fit perfectly in the old ones have close to a half inch of space to rattle around in them, both side to side and front to back. And I can barely get my snowshoe bindings over them. interestingly enough they use the same liner as my old ones (usually always have two of them and rotate them daily to allow one to air out perspiration) and my foot doesn't seem to slop around in them, they feel like they fit snug.
Summer boots I go through lots, last couple pairs have been Schnees, got two years out of first pair and one year out of second, but unlike most boots my feet stayed dry in them for the year long warranty. Very comfortable also. Think I may try Meindl's next time