I didn't have those all at the same time, but I'll give a few impressions.
The Beyers are the outliers on that list, being very bright midrange-heavy headphones. Clear, detailed and fantastic for classical, but IMO not very good for a lot of other genres. They worked well for some rock songs too, but a lot of stuff sounded anemic through them. Definitely not an all-purpose headphone.
The WS55X was the other end of the spectrum. Bassy, somewhat muddy. Even the bass seemed diffuse and sloppy. I didn't care for these at all. The ES700 was much better. I may be off base here because it's been a while, but I think these might be the most comparable to the Gratitudes signature. Crisp, decent bass, nice upper range. I found them too uncomfortable to keep, but they were nice.
The AKGs are what I'm currently enamored with. It's only the second day, and they're on my head right now. I consider these superior in pretty much every regard. Wider soundstage (unsurprising compared to an IEM), much better separation, more natural sounding. I like my Gratitudes, but it's not close.