Gujarat has many places, you first need to decide what you want.
Kutch region is known for white desert, white rann festival happens during that time.
Diu and daman are beach places. Diu would be the better one.
Dang and Saputara are hill station and forest destinations.
Patan and north part has ancient ruins and site.
Gir, somnath etc has wildlife sanctuary and famous temples.
I would suggest you decide first what you want to see.
Buzz me for any further help.
Happy vacay!