I tested out hatching my Eggs without saving (since Pokémon data is saved at the time the Egg is created, not at the time it's hatched). What I can tell you about your four Egg options is this:
Egg 1: Lonely ♂
Egg 2: Same as Egg 1
Egg 3: Modest ♀
Egg 4: Hardy ♂
All have the Hustle ability, and all know Tackle/Dragon Rage at birth.
Take your pick, and get back to me on Egg Moves if you want any for the other two. I've got them in my active PC box right now and am not going back to Black again this evening until I know what you'd like or unless I do another trade with someone else as well. :)
Meanwhile, I'll tell you about your Swablu:
- Lv.40 ♀ (DW)
- Brave Nature
- Cloud Nine ability
- Take Down/Refresh/Mirror Move/Cotton Guard
Clearly, being Lv.40, I do not recommend usage of it until after you get the fourth badge (Nimbasa) to give traded Lv.50 obedience (and after Driftveil the problem will not exist as the game could normally be finished under Lv.60, and by that point everything obeys you), and with Take Down being its only attacking move (barring Mirror Move grabbing something), I recommend giving it a good TM move in your inventory when you do use it (I will attach a Heart Scale to it in the event you want the lady in Mistralton to have it relearn a move). Meanwhile, you have plenty of time to work on your other three! :)