No have you actually seen the apperances of when a GL wears another ring? seriously have you? your basing something which hasn't even been shown or even remotly
Everything as what is shown and stated does not actually work with what your saying. Having two rings doesn't forceably give you a confidence boost, it's basically a regular joe with a gun you feel confident but physically it doesn't make you stronger. The confidence you gain isn't that significant especially to Kilowog whose confidence and skill is among the elite.
I am simply applying the reasoning that many on this board already have.
What you are doing is attributing abilities that Thor has to Beta Ray Bill. But why not give the same consideration to Kilowog with the things that Kyle, Hal, John Stewart, Guy Gardner or rookie GL's have proven capable of?
They all, after all, have the same potential power level...they all have the same potential versatility.
Surely, then, Kilowog - being the guy that TAUGHT most of those people - is bound to not only be able to do what they can, but also exceed it.
Well, there are a number of reasons that Hal has been deemed "the best", not the least of which being his will power but also his ability to think tactically and his dogged dedication.
I think the problem comes from the degree of "amping" we believe comes from 2 two rings versus one.
Whatever an extra ring would give would have to be very little, because all it would do is increase the perseverance and desire to win of that person. But it wouldn't artificially increase it.
That is to say, whatever that added ring does, the wielder is capable of doing totally on their own as well, in a case in which they are extremely motivated by the situation at hand.
What it comes down to, for me, is that if the universe is on the line that extra ring isn't going to make any sort of difference at all. Its only when someone is operating on a day to day basis that this is going to matter, and even then I feel like there are physical/psychological limits to will power that cannot be overcome.
I think that while Hal has a greater will power than Kilowog, its his intelligence in battle that would give him the decisive win over Kil. I think they are probably pretty close in raw will power (though Rebirth, IMHO, clearly demonstrated Hal's superiority to all of the earth-based GL's and Emerald Dawn to essentially all the Alien ones).