You see,
it is a problem of choices and slight suitability issues.
Suitability as in deciding which is the best partner... with the
best potential... and the least potential problematic kind... prior
to an actually relationship.
But if you ONLY have one option, you would probably settle for that
one. Even if you may hestitate on Guy 1, but definitely, if he did
the 'right' things to woo you, you will probably end up with
him.
This is the problem of choices, which goes to question yourself:
You sure you definitely have to choose between the
two?
Confusion between two guys often signify two things: you don't really know what
you are looking for and because you don't know what
you are looking for, you stall and wonder. You can ask most of your
friend about this and a general group of them would tell you Guy 2
is better... a safer bet.
P.S: If you never knew what you are actually looking for in a
person, you will always have this problem... the problem of
choices. 
Cheers