I'm happy with my Edeas, I got a used pair of the stiffest boots for $160, and they're extra stiff compared to normal. In my experience, you should go with something a bit stiffer if you're overweight. I'm a 195lb male, and my first figure skates were like, Jackson Mystiques or something, they had a PVC sole, the PVC sole started tearing off the boot in like 4 months (I've put a dozen screws in each to keep them semi-safe to skate in.) So even though they were good for my level on paper, in practice I destroyed them.
So I'd go stiffer, as it's not gonna be exponentially more money (your last boots were 600, the most your new ones are gonna be are like 1000) and it's possible you'd be able to buy yourself more time with stiffer boots. One option you got, too, is, simply call the factory up and ask if they'll make a version of a boot that's extra stiff for you, and see what it'll cost, just explain you're overweight and break down boots faster.
I personally love my Edeas, though, very light, very stiff, and they got a nice lining that feels nice. Edeas have a lot more support and popularity in the UK, so might be an option. Alot of pros use Edea, too, like Patrick Chan I know does, off the top of my head. I might just be in my "Yay my first good boots!" phase praising Edea, but I like them.
Also, one thing I did with my Jacksons (the leather oddly enough on mine didn't give out too bad) is when I first got my boots, I didn't lace to the top hooks. I only laced the first one the first week, then up to 2 for a couple months, then up to 3, and only now that they're crazily broken down am I lacing all the way. What happens in my opinion when you lace to the top, when you need a deep knee bend, you gotta move the whole boot forward, thus creating a crease, whereas if you don't lace to the top, only the tongue will bend and not the actual boot. So what you do is, as the boot breaks down a bit, you just lace higher and higher until you get to the top. May work for you, may not, but I've had two older people recommend that to me, and my actual boots didn't get much of a crease going on (I just wrecked the soles) but it could be worth looking into in the future if you don't already do this. Even when lacing to the top, I always try to keep a finger or two worth of space between my ankle and the edge of the boot in back, just so I can have a good knee bend forwards.