Which grinding/leveling up method should I use?

Question

Hey, I am currently at the Elite Four in my Pokemon Red playthough and my team looks like this;

Blastoise - 52
Mew - 52
Arcanine - 53
Parasect - 51
Primeape - 51
Pidgeot - 51

I am considering two options to grind up my Pokemon to a higher level so they stand a much better chance against the E4

First, I want to grind in Victory Road, because I wanted my win to feel more rewarding and to keep the feel of actually training up my Pokemon rather than just feeding them rare candys and calling it a day.

Then there's the MissingNo Item Dupe method, which speeds the process up quite a lot, but kinda cheapens my Victory against the E4.

Comments

The choice boils down to taking more time to level up the "authentic" way, or using unintended game mechanics to achieve the same result. If that's the only hang-up you have, you're the only person who can decide what to do. The Pokemon you train are no less legitimate if you use item dupes.

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You can also just battle the Elite 4 over and over until you win.