Where is the best place to grind levels in ORAS? I use the cafes in XY and I tried just rebattling trainers in ORAS, but that doesn't cut it. E4 doesn't cut it either because if I'm training more Pokemon, it's probably to take them through the E4 so that would be weird. I don't really like using the E4 as a leveling up method and never have, so that's out. Are there any other trainers that give out decent experience that I can fight? Or somewhere with Audino or something? I used the Audino in the Giant Chasm in gen V, but I know we don't have shaking grass anymore.
Look up Blissey bases, just a quick google and find a list of QR codes you can scan with your 3DS for blissey bases. Basically 3 Level 100 blissey with poison items that gradually kill themselves.
Nice fast easy XP.