I fondly remember the DR650SE - I had a XR650L at the same time, the Honda looked better but even with K&N air filter and Supertrapp it felt weaker than the stock DR.
I had to rev the hell out of the XR while the DR had a lot of very usable power down low.
Maybe the XR had more top hp but the DR felt stronger.
In the end I sold the Honda and kept the Suzuki. It's one of the few bikes I would buy again!