A pawn up.

Yes.  There are cases where it can become a forced draw like reaching the Philidor Position in R+P vs R and in many B+P vs B where the B's travel on opposite colors.

But the endgame is the strongest part of my game and if I can go 1 Pawn up, I'm confident that's enough advantage to win.  In the following game, I traded pieces to get a winning position in a N vs B endgame where I had an extra P even though some people claim a B is stronger than a N when there are P's all over the board. Yes, the 1 P advantage eventually became 2 P's, but the 2nd P was gained because my opponent had to worry about my extra P.  Note how useless the B is in this game:

@MickinMD: Gauge your likelihood of winning this endgame as white agains't opponent of equivalent strength.

Write in percentage how likely you're able to convert this rook endgame agains't an opponent of similar strength. 

Percentage = confidence level

Jesus wasn't strong enough to save him in that game, lol.  Wilhelm Steinitz said "A pawn ahead is worth a little trouble."

"Any material advantage, no matter how small, assures victory, other factors being equal"
- Capablanca, Capablanca's Last Chess Lectures, p. 60