I've got those Forte GT2s with about 500 miles on them with 2 flats thus far. Both flats were from "goatheads" , stupid gigantic thorns. I've had others get stuck and have had to pull them out. The 2nd flat looked like it was a the tip of the thorn that had just worked it's way through after time. They do OK with flat resistance, but I'm not all that impressed so far.

I previously had some Panaracer Pasela's with Tourguard. They really worked quite well, and I didn't have any flats from punctures, but I did get a very nasty pinch flat which tore the sidewall so I ended up replacing them. I ran over something very hard at about 25mph while looking behind me for cars. They were at full pressure at the time. They were replaced at about 1.2k miles with what seemed like a lot of tread left.

I wanted to try the continental gatorskins, but the price on the Forte's was compelling. I'm not sure if the gatorskins would fare much better with the thorns I met (or the Panaracers for that matter), and I had gotten those flats after taking completely different routes than i ever had with the panaracers. The Forte's haven't been punctured on any of the routes I took on the Panaracers so for me they've been about equivalent so far.