Remembering the old saying "buy the best you can afford and dont look back, you wont be sorry" It really rings true between the Swamp and Busse. The Ratwieler or the upcoming Rat Mastiff are fantastic knives for the price, and its hard to beat SR101 and the heat treat it gets. Busse and INFI is in another realm altogether, the sheer strength of INFI and the long time name of Busse carry a lot with them.
If the Swamp Rat is what you can comfortably afford then you cant go wrong in any way, its not second class by any means. Few would be able to take either knife to its performance limit.
Plusses and minuses:
SR101 isnt stain resistant, INFI shows an amazing amount of resistance.
Bang for your buck is way higher with the Rats.
The guarantee is unmatched for either.
INFI performs a bit higher than SR101A Ratwieler costs around 200
A Fusion Steel Heart 350 - 500 depending on the options
150.00 difference to me is not all that much, but, I have both a Ratwieler and a Fusion Steel Heart, well, three actually
And yes I use the Steel Heart(s) only one of the seven
foot: ) doesnt see use.