User blog comment:IamJakuhoRaikoben/Sorcerer Magazine, Issue 41: May 2015/@comment-63.135.255.25-20150630101303/@comment-4449950-20150630105756

I really don't want to fuel this fight, because I know all the Laxus lovers will spout pages and pages of retorts that I'm not going to read, but I feel the very strong need to point out that Minerva was only defeated by Erza using two skills:
 * The first was brute strength from her weapon and her attack (which Laxus definitely could mimic in a battle against her, as you pointed out)
 * The second was a blade that dispelled Magic and cut through space. Aka: a weapon that countered Minerva's Magic PERFECTLY and allowed her to get past Minerva's Magic and take her out with her brute strength of an attack.

Laxus has the first, but he doesn't have the second. So long as Minerva has her Magic do defend herself, I doubt Laxus is going to be able to land an attack before Minerva's worn him down or come up with a smart manoeuvre to counter his Magic, or done something else entirely to put him off the playing field. It'll be close, definitely, but without a deus ex Mashima blade of cutting through space, Laxus needs more than just strength to win this one.

(P.S: Laxus' fight against Jura, in my [and many fans'] humble opinion, made no sense whatsoever.]