I have been three times - once on 26th November, once on 18th December (loved it at Christmas so went back again!) and once at the beginning of June. It is obviously a fairly busy place, especially in school holidays - but it's a theme park, you just need to go and expect it to be busy. It's so Disney and magical that you almost forget about it being so busy. Or I do anyway (but I am a Disney nut!). Florida is undoubtedly better but with smaller children, a trip to Paris is much easier I imagine! You wouldn't be able to do DLRP if you have done Florida, it just can't compare - but you could do it the other way round and do Paris first, as a 'taster', then Florida later. Depends how old your children are, you didn't say.
Instead of staying in the Disney brand hotels, we stayed at one of the 'Selected' hotels, on the same lot, still have shuttle buses to the parks (though they share one between the 3 hotels, rather than having a bus each as the Disney hotels do), but owned by other companies.
Twice we stayed at the Explorers' Hotel and the third time we stayed at the Dream Castle - 3* and 4* respectively and significantly cheaper than the cheapest Disney Brand hotel, the 2* Santa Fe. Our room at the Dream Castle was around £90 per room, per night in June, and the room had 4 beds in.
The Explorers' was great for kids - big pool, adventure playground-y thing, pizza parlour and all of the Selected hotels also have their own little Disney Store, so if you buy things in the park, you can have them delivered to your hotel's Disney Store rather than having to lug it around with you (or at least, you could last time I went).
Oh - it's FREEEEZING in the winter - have never been so cold! Had to buy hats and thicker gloves, and regular cups of hot chocolate very necessary. Freezing fog both times we went at Christmas. So magical though
