In all honesty if you are prepared to do one long day, around 10-12 hours you can do almost everything. I have been a lot (live in the UK) so if you need any advice or questions
Ride ratatouille first thing in the morning or go single rider. Fast passes get distributed quickly. Crushes coaster is another ride with very long waits. You will find people there do not exactly queue well for anything
Fast passes are like the old system where you have to physically go the ride and get it, certainly wait before buying the MaxPass we have never needed it
Rides which are in my opinion better than Florida or California
Big thunder mountain - again ride first or fast pass
Phantom manor (haunted mansion)
Pirates of the Caribbean
If you like ‘scary rides’ (which I don’t) space mountain goes upside down, there’s a toy story car ride which looks scary to me and I would put crushes coaster in this category
Bear in mind March May be cold/wet
The shows usually have French and English showings so pick the right time
Be prepared customer service is something very different to the American parks and they can be incredibly slow
There’s a big Star Wars shop at star tours which most of it you can only get in that store.
If you like Minnie ears Paris also has quite a few exclusives