I guess I should give more info. Only the rank matters when determining winning hands. Although the suits do have an order to them (Spades, hearts, diamonds, clubs from highest to lowest), they aren’t taken into account.
I’d leave the extra money in the pot for the next hand, if the player’s couldn’t agree to just give one or the other the money. Or else, draw high card for it, I suppose. The rank of suits is really meaningless in Poker, so that doesn’t come into play.
The rule on who gets the ‘odd’ chip varies. The most common rule is that it goes to the player closest to the dealer, starting from the dealer’s right. So if one of the players was in last position, he’d get it.
Sometimes it’s reversed, and the player who was in earliest position (i.e. the one who had to act first in the last round) gets the money.
That’s the case for hold’em games, where the position doesn’t change between rounds. In seven card stud and draw, where the position changes relative to the highest exposed card and not in comparison to the dealer’s position, I think it goes to the person who was first to act in the last round. But I don’t play a lot of 7-card stud these days, so don’t quote me on that.
What you’re hearing is mostly “house” rules, as opposed to any official set of rules. Im not sure there is any official set of codified poker rules that is viewed the world over as a final authority. So their can be multiple answers to the rules on some of the very fine points, like splitting the odd dollar on a split pot.