Stumbled upon this today and thought it was pretty interesting.

Code:
Age  	Tm   PA   2B  3B  HR  BB  SO  	BA  	OBP  	SLG  	OPS  	BB%	K%	IsoP
22	Day  414  24  2	  9   25  57	.289	.350	.436	.785	6.0%	13.8%	.147
21	Day  264  16  2	  7   19  34	.280	.351	.453	.805	7.2%	12.9%	.173
The first guy was a year older and spent a full season in Dayton, while the other player only spent a half season there or so. The younger guy showed a little more pop and both play the same position.

The 22 year old? Chris Heisey. The 21 year old is Josh Fellhauer. Anyways, just thought it was interesting how similar the two guys were for the most part.