I have both Realm of Magic and Jungle Adventure and I love them both. But it really depends on your play style. I love occults so Realm of Magic and having spellcasters fits in nicely with my vampire gameplay. But I do recall my time with Jungle Adventure and having a blast with it too. I didn't see it as very family oriented but it could be. I liked to explore with 1 or 2 Sims and try to find all the relics. I actually use this pack quite a bit.....so maybe if you're leaning towards a GP.... I'd go with Jungle Adventure.
For Stuff Pack, if you're into camping & outdoor activities, maybe Outdoor Retreat.
