Going back a few decades, I've used Hoya HMC for my film cameras. But, I have noticed increased flare with this filter on an EF 70-300 f4-5.6 USM IS.
Last winter, I upgraded to the EF 70-200 f2.8L IS Mark II and the EF-S 17-55 f2.8 IS lenses. I'm now using the Hoya HD Clear Protection Glass Filter (HOHDP77) on both and I HIGHLY recommend this filter.
Hoya's website includes video demonstrating it's toughness. Fortunately, I have no first-hand experience with this. But, Hoya's claims that this filter is easy to clean are valid. Fingerprints come off very easily with a wipe of lens cleaning cloth. More importantly, I have been unable to reproduce the flare that I found with cheaper filters – and I tried.
Moving from the 58mm 70-300 lens to the 77mm 70-200, I was concerned about flare. So, I did some testing with this filter on the 70-200 aimed at and near the evening sun. I found no discernible difference in image quality and no increased flare.
One other note here. The curvature of the front elements on the 70-200 and the 17-55 is relatively flat, which helps prevent internal flare. In contrast, the EF 35 2.0 has a front element deeply recessed from the filter threads and with a small diameter curvature. Together, these factors increase the chance that light can bounce between the front element and the rear of the filter. A cupcake with a single birthday candle can produce several flared images with any filter. I no longer use filters on the little lenses.