Baker, would be my choice, by a whisker.
They are not really that similar. Baker offers more skill and dribbling at defences, which causes panic which others can profit from, which I like. He has also played at a higher level. JOB is the current fans favourite and he offers muscular wholehearted commitment with the occasional gem of a pass. Both are guilty of squandering possession but, to my mind it is in more advanced positions with Baker and easier to recover from.
I know I am in a minority but I think JOB is overrated at times by our fans. He is too erratic within a game for me. On Saturday JOB gave the ball away many times and there was barely a murmur. The first time Phillips did the same people were on his back.
Ideally we would have both but currently JOB suits us better as we have plenty of dribblers so we don't need Baker.