Molly2004,
Well, if you really Have to blow off 2TS, then FF is a very nice restaurant and especially convenient to BWV.
It use to be our favorite restaurant and we ate there many times with our now 5&7 yo DDs when they were younger. We also ate there alone for our 5th anniversary.
AP and Citrico's has now past FF in our favorite restaurant rankings. The kids especially love AP for the Mickey coloring and the puzzle painting dessert. We did not take the kids to Citrico's the one time we dined there.
FF is still good but just not as good as it use to be. Love the mussels. It is super convenient to BWV and with young kids, I say go for it. I would try to get an early seating. Many times we got the earliest ADR (I think it opens around 5 or 5:30pm). I think we were the first ones seated one night! It was like ALL the waitstaff and hosts were taking care of us! Lol!
ONE of the only times in a WDW restaurant where DD5 (then terrible 2) was acting up and refusing to sit still was at FF one year. She kept getting out of her seat and wanting to "play" under and around the bar stools facing the open kitchen next to our table. We had an early seating and the restaurant was pretty deserted. Even so, we couldn't let her get out of her chair like that, so we took turns taking the kids to the candy store next door. We ate in a lot more that one particular trip.
When she was an infant, we have taken her in her car seat where she slept through dinner. I remember one time when she was slepping in her stroller, they even let us roll her right up next to the table during the meal. Boy, we have eaten there a lot!
After an early dinner, stick the kids in the stroller and walk around the BW or even over to WorldShowcase. You get to walk off your meal and hopefully the kids will nod off too and you can roll them right back to your room.
If I had the time on departure day, I might do Spoodles (just as convenient as FF) one night and have a Cape May character breakfast on the morning you check out.
To be honest, DH does not like buffets at all and doesn't want to do them anymore. But we did A LOT of the character buffets when the kids were young, especially when they were under 3. First they get to eat for free and we could always find something they were willing to eat and we didn't wind up ordering something for them that they refuse to touch.

Second because the themed meal kept them entertained throughout meal, WE got to eat our food! Just something to think about.
FYI, January isn't a very crowded time of year, so I don't know if a Fantasmic package is really necessary. But if you have a hankering to eat at Brown Derby anyways, I guess you'd might as well get the reserved seating out of it. We ate at the BD for the first time last trip. It was a very noisy restaurant. Nice, but I don't know if it was worth 2TS.
Just remember that the BD Fantasmic pkg requires 2TS. So, with the FF for 2TS, you would have used up 4TS per person for 2 meals already.
Have a GREAT trip!!!!
