I just drove a 2011 Sport HSE LUX the other day. I have also driven a 2006 Sport Supercharged. The supercharged was more fun, for obvious reasons, but the NA 5.0 is no slouch. The 2011 had better road manners and the interior was a bit more refined, but it's all gravy at that point. They are very enjoyable on the road and feel livelier/more nimble than the L322 Range Rover. Rear room is a bit cozy given the size and the steeper slope of the rear glass reduces cargo capacity.
For practicality purposes I'd take the LR3/4 over a Sport. If on-road driving dynamics outweighed everything else I'd go with the Sport. Of the newer models, however, I still find the Jag 4.4 L322 Range Rover to be the tits. If I want a sports car I'll drive a sports car. It's hard to beat the overall comfort of the L322 and it doesn't lack for power.