Hello there,
I only get time in winters, so get very limited options, and with family, limited options get more limited.
Tired of visiting Galiyat, Shogran. Once tried Naran and Swat in winters but failed, reason I went without any plan. 
This time, got 12 days free, and I want to make it to full, got few options from different travel sites, sharing below .. expert guidance needed to make a good plan with routing, places to see etc.
1. Kashmir : Never been beyond Muzaffarabad, so no idea about road conditions, hotels and places there.
Day 1. ISLAMABAD - MUZAFFARABAD
short stays at different spots during travel.
Day 2: MUZAFFARABAD - KERAN
Depart for Keran, during travel short stay at Athmuqam and Kundal Shahi. Overnight stay at Keran.
Day 3: KERAN - KUTTON
Visit Upper Neelum and depart for Kutton. Overnight stay at Kutton.
Day 4: KUTTON - BAGH
Depart for Bagh, during travel short stay at Muzaffarabad. Overnight stay at Bagh.
Day 5: BAGH - RAWALAKOT/BANJOSA LAKE
Depart for Rawalkot. After reach Rawlakot visit Banjoosa Lake. Overnight stay at Rawlakot / Banjoosa Lake.
Day 6: RAWALAKOT - TOLIPIR - RAWALAKOT
Visit Tolipir. Overnight stay at Rawlakot/Banjoosa Lake.
Day 7: RAWALAKOT - ISLAMABAD
Early morning depart for Islamabad, during travel short stay at Rawal Dam and Park.
2. Hunza : never been beyond Battagram, no idea about road and security conditions.
Day 01: ISLAMABAD - ALIABAD, HUNZA
Departure from Islamabad for Aliabad during evening.
Day 02: ALIABAD - KARIMABAD, HUNZA
Transfer to Hilltop Hunza. Overnight at Hilltop Hunza
Day 03: KARIMABAD, HUNZA
Shopping at the Karimabad bazaar. Visits to the historic Altit Fort and the Baltit Fort. Overnight at Hilltop, Hunza
Day 04: KARIMABAD, HUNZA
Drive to Hopar Village in the morning via jeep. Sightseeing at the Hopar Glacier. In the afternoon, drive to Duikar and overnight stay at Eagle?s Nest Hotel.
Day 05: KARIMABAD - DUIKAR
After breakfast, leave for Attabad Lake. Enjoy the boat ride around the beautiful Attabad Lake. At 5 pm, transfer to Eagle's Nest Hotel, Duikar. Overnight at Eagle's Nest Hotel
Day 06: DUIKAR - ISLAMABAD
Departure for Islamabad.
Day 07: ISLAMABAD
Arrival at Islamabad.
3. SKARDU and surroundings : couldn't find any proper trip details for help, anyone guide me on this?
Short Visit to Fairy Meadows if possible: I've no idea if Prado 5 door can go up to fairy meadows track, till tattu? and will there be any porters / pony available in winters? If all managed .. I'd love to visit this place as well.
Seriously I'm much interested in Hunza or Skardu (Including Fairy meadow short visit). If some experts can guide me how it can be done safely and comfortably with family, I'll be very thankful.