I will try to answer this as fast as I can as I need to run up to Walmart.

All steels have some compromises in some way or another.

There are multiple factors to consider for knife steel.

Toughness, edge holding and ease of sharpness are generally the top three, but not always in that order depending on intended use. - with corrosion resistance considered a plus if not conflicting the the priorities.

For Field use knives, INFI just has the best across the board abilities: Super tough (more than plenty tough!), Very good edge holding and reasonable enough ability to sharpen. And as a plus, INFI is pretty decent at corrosion resistance. INFI can rust. It is not stainless, but it is usually a non-issue with very simple maintenance. It may be one of the best non-stainless steels at not rusting (????).

SR-77 may actually be a slight amount tougher (not proven yet - but commonly believed). But, INFI is plenty tough enough, so toughness is a wash in the real world. SR-77 gives a little ground in edge holding to INFI which is ultimately the advantage to INFI in "statistics". SR-77 is easier to sharpen.

But, SR-77 is BY FAR a better bang for the buck compared to INFI!!!!

For the Record, SR-101 from Swamp Rat is VERY good steel as well!

And since all knives from Scrap Yard, Swamp Rat and Busse all come with a lifetime warranty against failure, toughness is again not an issue.

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