Why is MJ different in Spider-Man?

If you mean that MJ is different in Homecoming and Far From Home than she has been in other Spider-Man iterations, then yes, she’s very different. The creative team didn’t set out to make a new Mary-Jane, they just set out to make a character who was very loosely inspired by her but mostly wholly unique to the MCU.

Did MJ change in Spider-Man?

Homecoming established MJ as a character completely removed from any fans had seen in the comics, but Spider-Man: No Way Home seems to have changed that. Shortly after Peter is outed as Spider-Man in the new film, J. Jonah Jameson launches a campaign against anyone affiliated with his civilian identity.

Which MJ is better in Spider-Man?

She is the truest to the comic roots (even in Death, though that was rushed and out of place) and is played very well by the actress. Micheal “MJ” is perhaps the better of the other two, as she is a good placeholder for the girlfriend with a recognizable moniker of MJ.

Why did they replace MJ with Gwen?

Traditionally, Mary Jane did not appear in the first few years of the Spider-Man comics, so there was no specific reason that she had to be included in a Spidey origin film. With Mary Jane out of the picture, the writing team instead decided to focus on Gwen Stacy.