In general, no, there is not a "a best suspension frame" (just as there is no best car, best breed of cat, or best person).
There are loads of different suspension designs (single pivot, FSR, DW Link, Maestro, VPP, URT, iDrive, ABP, Switch, Pathlink, Droplink, to name only a few), each with their own distinct advantages and disadvantages. There are also a lot of different types of bike, aimed at different types of riding. What works for World Cup cross country might not work for downhill racing, at RedBull Rampage or even on trail bikes. They all make a different set of compromises. There are also a lot of different people with different riding styles, priorities and preferences. There's so much more too add into the equation, too (sizing and geometry, cockpit, wheel size and so on).
So while there might be a best suspension frame design for a given rider on for a certain trail, there is no single suspension design that stands out above all others in all situations.
Have a read of http://www.bikeradar.com/gear/article/buyers-guide-to-mountain-bike-suspension-part-2-28438/ which provides a good primer on the topic.