I used to use Maxima Ultragreen until I was turned on to Suffix. I found that it has the same beaking/knot/abrasion strength as the ultragreen but a little more forgiving on spinning reels, plus it comes in a yellow color that I like for side drifting.
I'm curious what others are using and whether you're using it on spinning or casting reels. I'm using #10 test most of the time. (I'm talking mainline here, as opposed to leaders, where I still use #8 ultragreen).

Right now, for chums in Hood Canal, I have been using Stens' 14# Super Tough. Gotta be able to get over those oyster beds without loosing tackle every cast. Normally, I use Stens' Clear/Blue on the spinning reels.

Maxima Ultragreen and Chameleon. Nothing else!

~steelymann~

Izor High Vis, Ande, Stren High Vis

Skeets

Maxima UG and Power pro

Maxima UG for salmon/steelhead
Tuff plus for bottom fishing

Izor Platinum and Maxima Chameleon both main lines. UG and Izor from leaders. I only use casting rods.

ande tournament

For Steelhead #12 Ultragreen as mainline. This year I tried something a little different. I used #30 Power Pro on a Ambassaduer 5600c4. This 6.3:1 baitcaster on a Loomis 1025c prooved to be the best setup for spinner fishing for big silvers in the river I have used. The fish were not the least bit shy of the line (#6 dia.) Positive hooksets and they don't come off. In addition you can feel everything. No more guessing...is it a fish...or a stick?

Maxima UG

RR,
For oly/pen steelies Izorline!!! Go Big! or Go Home!

Either Fireline or Berkley Big Game.

Maxima UG on my drift rods, and Power Pro on the Float rods.

Power Pro mainline (tied direct to plugs and spinners)

Izor for leaders when leaders are needed

Jim

I use Maxima ultragreen 12#. I tried out Tuffline, but i found that I can't cast it as far. So now i am back to the Maxima.

Sufix 10# Mainline in Hi Vis Yellow.
Sufix DNA 8# for Leaders in Sea Foam Green.
Power Pro for Sturgeon and Columbia Kings.

For mono I like Izor the best and Power Pro for float fishing

Suffix D.N.A. in hi viz yellow. Or triple fish. I never go over 8# when throwing jigs or bait for steelies or silvers.And use 6# a lot of the time.

i used to use berkley xt, till i fell in lve with ziorline platinum green..little or no stretch or memory, but the stuff gets twisted on my spinning reel, but does awesome on my 6500c3, i heard suffix and izor are made by the company in japan but sold as 2 differant names, any truth to this??

I run power pro on everything. Damn bass line :p