I own and have used both analog clocks and the USCF Game Time; I have used Chronos clocks in tournament play. The DGT 2010 is the best. Analogs, obviously, have no capacity for a delay (Bronstein) nor increment (Fischer) time controls; however, I do love the melodic ticking.The Chronos clocks are constructed well and the touch plate versions have a "coolness" factor. They are also capable of Bronstein and Fischer time controls. However, they have 3 buttons to control the entire setup, making it a bit cumbersome and tedious. For the price, the clock is not easy to setup, nor does it display enough information during the setup. The long Chronos clocks also take precious space away from players in cramped tournament tables. The soft touch plungers, and touch plate, make for smooth play.The USCF Game Time is a fine clock and at roughly the same price point as the DGT 2010. It's limitation is that it is only capable of Bronstein time controls. In addition, the Game Time requires 4 AA batteries. Setup is fairly easy, presenting enough information on-screen. One drawback is that the plungers are fairly loud, and people unaccustomed to using them stopping pressing down when they feel resistance and do not trip the opponent's timer.The DGT 2010 Clock runs on 2 AA batteries (DGT claims that it will run for 7 years on a pair of batteries), is Bronstein and Fischer time control capable, is light weight, but durable. Like the Chronos, when you push the button after completing a move, there is no doubt that you hit your clock; I have had opponents not press my Game Time plunger hard enough and only stopped the clock. Setup is easy and clear, though the instruction could be clarified more; unlike either the Game Time and Chronos, the DGT 2010 has abbreviated instructions on the underside. Reseting the clock for another game is as easy as on the Chronos: push the power button off and then back on; the Game Time requires you to hold the "button" - it is more of stick - down for 3 seconds and then turn it back on. Most importantly for a tournament chess player is that it is both USCF and FIDE legal.