Including some stuff HGSS has like before entering a landmark like Bell Tower/Ilex Forest picture, Pokemon following you, GBA Sounds, etc.
Also for Gym Leaders:
Roxanne- Geodude 13, Aron 13, Nosepass 15
Brawly- Machop 18, Meditite 18, Makuhita 20
Wattson- Pikachu 20, Voltorb 20, Magneton 22, Manectric 24
Flannery- Vulpix 24, Slugma 24, Camerupt 26, Torkoal 29
Norman- Swellow 27, Linoone 27, Spinda 29, Slaking 31
Winona- Golbat 29, Tropius 29, Skarmory 30, Pelipper 31, Altaria 33
Tate & Liza- Xatu 42, Claydol 42, Lunatone 44, Solrock 44
Juan- Relicanth 41, Sealeo 41, Whiscash 43, Crawdaunt 45, Kingdra 47
I'll show the Elite Four later. Also having many things Emerald had like Trainer Hill, Battle Frontier, Magma vs. Aqua, etc. Also when people call you the Pokenav is silent and ignorable, unless it's someone like May, Wally, Norman, Scott, etc.
It should be after the BW 3rd game 1st though.