I can only vote for Elios, both because it's what I have and because it seems to hold up to my abuse. It has some cuts and tears now, but after hundreds of dives between rocks and never rinsing it with non-salt water that is to be expected.
I got mine directly from Elios. I would suggest you to apply there for a quote, they might actually have the same or cheaper price as another middleman gets cut out. Also when dealing directly they can really do any wish you have.
What kind of diving do you do? Is it freediving from a boat or spearfishing from a rocky shore that's never calm? Do you dive deep, and how many dives do you make? I, for example, spearfish all year round from rocky shores on a Mediterranean west-coast, so always waves. I dive medium depth (or shallow depending on who you ask haha), and spend 5-8 hours in the water making many dives per hour. Also my budget is limited. So for me all the soft neoprenes were out of the questions because they generally don't last as long and compress more easily. For me a 3mm Heiwa medium density was the best value. It lasts long and keeps me nice and warm, also at depth as it compresses a lot less than something soft (which however also means my free fall depth is a lot deeper for the same weight).
The wetsuit is to keep you safe from hypothermia, stings, scrapes and bites and to provide buoyancy. It's a safety tool, so quality is important. But since you'll be wearing it a lot (depending on your use of course, a competition freediver spends way less time in his suit than a spearfisher), comfort is extremely important too. Make wise decisions here, if the suit is well looked after it will last you a long time, so the extra cost normalized to yearly is neglilible.
There are two things I would do differently with a next suit. I would add a pissette as any water inside the suit makes it a lot colder during winter. And I would tap all the ends of the stitching with a little wetsuit glue as in elastic fabric they have the tendency to work themselves loose. Not sure if other suits have this with the stitching as well, it's the only minor criticism I have for my Elios suit.
