My 1911 Ty Cobb has been fantastic: through 50 games, a slash line of .353 / .417 / .517, 35 SB (with only 7 CS), and a net positive on the defensive end (9+/1- plays, with 5 errors) in CF. This is in a pitching heavy league (.249 / .307 / .336, with a league ERA of 3.48). And drafting Cobb allowed me more flexibility with the money I saved versus using the other studs.
On a related note, I've been very happy with my 1995 Greg Maddux (9-1, 1.56 ERA, 0.87 WHIP), and my team has a 2.60 ERA (even with some bullpen issues, starters have been lights out). This has been my best team at 34-16 (even after losing my past two games in extra innings), hope it continues!