Well, Erza does have the feat of taking down a spriggan albeit with help. That's something Natsu is yet to do. Ant pit was a lesser spell from Ajeel. Erza eventually managed to get him pissed enough to go all out.
Natsu took down the war god, but with a FDK spell while his earlier attack was useless. It does seem like Natsu has surpassed Erza by now, but is there really conclusive proof to this fact (asides FDK spells)? Natsu one shot bluenote yeah, but bluenote isn't quarter the opponent Ajeel. The original plan was also for Natsu and Gajeel to take on Ajeel but Erza took on him solo and even though she wasn't superior, she managed to hold her own for most of the fight and was able to take full advantage of openings to deal damaging blows to Ajeel. It was ultimately her attack that felled him. Natsu may be stronger or seems to be based on hype and some crazy showings but I don't think he's proven without doubt that he is, at least not yet. I'd like to see how he fares against a spriggan in proper combat. Though not all of them are equals.
Still, since Natsu and Gajeel both have dual modes, I'm leaning towards them for this fight.
Natsu took down the war god, but with a FDK spell while his earlier attack was useless. It does seem like Natsu has surpassed Erza by now, but is there really conclusive proof to this fact (asides FDK spells)? Natsu one shot bluenote yeah, but bluenote isn't quarter the opponent Ajeel. The original plan was also for Natsu and Gajeel to take on Ajeel but Erza took on him solo and even though she wasn't superior, she managed to hold her own for most of the fight and was able to take full advantage of openings to deal damaging blows to Ajeel. It was ultimately her attack that felled him. Natsu may be stronger or seems to be based on hype and some crazy showings but I don't think he's proven without doubt that he is, at least not yet. I'd like to see how he fares against a spriggan in proper combat. Though not all of them are equals.
Still, since Natsu and Gajeel both have dual modes, I'm leaning towards them for this fight.