The 2.2L obviously has more power, 181 hp vs 197 hp 392 Nm vs 436 Nm. I don't know about the power-to-weight ratio of the two. Having driven the Santa Fe, it feels like the Santa Fe has more pull. However, that was the dual-exhaust version. Not sure if that is a factor.
The 2.0L obviously would be more economic.
But if you want the power and the economy, you could always buy a race chip pro and attach it to the Sporty (or the Sorento for more power and slight FC improvement).
Cue: shameless plug 
I have one on sale on Sulit
