Here's my experience with JD and Husqvarna.
First off I'm a very big fan of both companies, and I can't remember of a bad product from either companies, I love Huskys chainsaws and am a huge fan of the premium JD mower lines.
My Father bought his 445 JD new in 2000 and I have had hundreds of hours on that.
I bought a Ariens 42in 19hp kholer lawn mower for my mother back in 2009 and that mower has had a hard life, it's cut 3-4 acres weekly and I used it to blaze trails in over grown pasture for the ATV and trucks, that was 5-6ft tall and full of thorns and saplings, Ariens sends a new set of blades every 2 years so by the time the old ones couldn't take a sharpening a new set showed up lol. That mower is sold by Home Depot but made by Husqvarna but the design is that of a old craftsman, I can order parts threw sears direct or Husqvarna. That mower burns up a deck belt once a year but that's about it past regular maintenance, it still mows strong to this day.
Next is the mower I bought for my house it's a GT2454T with 200h on it, picked it up off CL for $800, it has a 24hp B&S in it with a 54in 3 blade deck and so far I have had no issues with it since I have owned it (about a season), it doesn't see the tall stuff like that poor little Ariens does but it mows my 1.5-2 acres in about 60-80 mins depending if I cut it weekly.
Cuts like this
I have also ran 1 other GT husky for a lady I did lawn work back in 2008, never had any issues with that one either.
So I wouldn't hesitate to buy another Husqvarna product, I would never own a big box store Deere or a MTD made mower, I have seen a lot of 1xx JD's with stripped out steering gears or for example my neighbor stripped one of here blade gears on her Cub deck by hitting a water casing in her yard last fall, I didn't hear what the fix was but the guy charged her over $400 to fix it. That's just one example.
Seems to me the only big box store mower worth buying is made by Husqvarna, Deere makes a fine product on there premium lines but there big box store line is garbage.
So if you want a reliable mower of grass that will last a good long time buy the husky. If your gonna run a lot of ground engaging implements get a x500 or x700 deere.
P.S. the only time I have had grass clump is if the grass is wet, my husky doesn't seem to mind the dew as much as the arians does, even the 445 gets clogged when the grass is wet, the JD seems to handle the moisture a bit better than my husky. But all will clog after awhile.