Need help for trip itinerary

We are a group coming from Kerala and we are planning to visit rajasthan for a duration of 2-3 days. We will be entering rajasthan after visiting Ahmedabad. We are planning to visit any one of these 4 places in Rajasthan and after that we are heading towards Kashmir: 1. Bikaner 2. Jaisalmer 3. Udaipur 4. Jaipur Please help me to choose which among these places would be best listing its pros and cons also if yall could 😃