Not a massive fan of having a single model to follow, but to answer the question for the OP I would suggest somebody like Simon - very solid, makes a lot of balls, good balance, good rhythm to his strokes etc. Would get 75% rating for everything, but doesn't excel in any one area.
I tweet - @ashtennis guru (no spaces)
I Shoot - www.flickr.com/photos/ashtennis guru/ (again no spaces! grrr)