Forums Scripts & Popups If elseif problems.

So would this be true.

if (a == a) && (b == b) && (c == c) { do this }
elseif (so a minimum of 1 of the 3 is not true?)

And would using elseif in this case be true?

if (a == a) && (b == b) && (c == c) { blah }
elseif (a != a) && (b == b) && (c == c) { blah }

What would you use for the red? Elseif? (In terms of speed).