You are comparing Chalk with Cheese. They are not really comparable the only thing in common is that they both fly!
A PA28 Warrior is a heavy but stable old Transit van of the sky type of aircraft with limited outside visibility and a gas guzzling Lycoming up front.
The PS28 (Sporcruiser) is a 600kg very lightweight LSA type aircraft with outstanding bubble canopy visibility and a Rotax 912S sipping a mere 18litres an hour up front. For sure it is not as stable a platform as the PA28 for say doing instrument training in but for everyday use or touring it is great.
Having said that with quite a few hundred hours of both PA28 time and 6years Sportcruiser ownership in my logbook I confess to being somewhat biased....