As per my view
1. Mumbai CST Bangalore AC duronto>>>> Super hit
2. Mumbai CST Chennai Egmore Non AC duronto>>>>> Super hit
3. Lokmanya Tilak Terminus Varanasi Non AC duronto>>>>> Super duper hit
4. Bandra...
more... Terminus Hazrat Nizamuddin Non AC duronto >>>> Super hit
5. Ahmedabad New Delhi AC Duronto >>>>> No need, Rajdhani always not full every time. It may be Non AC duronto.
6. Mumbai Central Jodhpur Non AC Duronto>>>> No idea.
7. Howrah Jaipur AC Duronto>>>> Not great but useful.
8. Guwahati/ Dibrugarh New Delhi Duronto express>>>> Not required.
9. Howrah Hyderabad AC Duronto express>>>> Non AC become Super hit
10. Patna Nizamuddin Non Ac duronto>>>>> Not required. Sampoorna Kranti/ Vikramshila/Jansadharan fulfill this category.