Syaoran in Cardcaptor Sakura is around 10 years old or so (he's in 4th grade right?)
Syaoran in Tsubasa: Reservoir Chronicle is 14 years old (at least the original is...)

Tsubasa Reservoir Chronicle comes before XXXHolic. Oh and by the way, Cardcaptor Sakura comes before Tsubasa Reservoir Chronicle.

First of all, this question isn't having to do with Naruto. It's from Tsubasa Reservoir Chronicle. And yes, Sakura and Syaoran love each other very much. They show it alot in the anime.

"*Clamp" is the author of Tsubasa: Reservoir Chronicle .

*Clamp is composed of four female writers .

Card Captor Sakura (Children)

Tsubasa Chronicle (Young man and woman)