For others finding this thread in the future, I tried a broad range of 5mm suits before settling on the Henderson Aqualock. I absolutely loved the features of the Waterproof W7 but as mentioned in a few other threads, their "medium" didn't fit me too well (too baggy in the wrist seals and also around the elbows) so went for the Aqualock due to the better fit for me personally. If I could have found the W7 somewhere in Small/Tall (which ironically looks like a slightly tighter medium in terms of height) I might have gone with it as I loved the features of the suit (pockets, double back seal, zippered wrists, ankles and neck).
I also tried the Scubapro Definition and EverFlex and absolutely hated the fit of both - particularly the neck zip which felt like it was choking me out. They felt super restrictive in the arms, whereas the Henderson fit like a glove from the first try on. Definitely give both that and the W7 a try.