You need to decide what's most important to you - ride, speed, flats, price, etc. It's a trade-off.
Nice ride, fast = Greenspeed Scorchers, judging by message traffic.
Bombproof = Marathon Plus
Happy medium = Marathon
I'd very much like to know how Scorcher TR (kevlar) compare to Marathons for puncture resistance. I'd like the better ride of the Scorchers, but I have to ride through lots of debris on my commute.
Hope this helps!