JMS Big Bang Tespia Open For All (?)

Overall how would you say normal mobs compare to those in world tour areas? Better, worse, about even?

Well, normal mobs are sorta worse than those. Reason? Maps, and other reasons make me think like that. It's not that easy to handle and use properly the Ghost Pirates map, which is huge as pineapple, when you have Himes, with a flat map to train on. Some monsters from outside WT are still good compared to those, but the special drops (Ilbis, Stonetooh Sword, Shield Attack scrolls (10,60,70,30%'s from Kaede, 30 attack stars and 4000 refill bullets with the highest attack from Iruvata and Afterlord, respectively in Tokyo) , map layouts, spawn and such makes them better than other monsters.
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Also the fact you can access world tour from anywhere, especially in JMS where you can get to Victoria at any moment wherever you are.
I still think the monsters from world tour, even having closer EXP ratios, are more likely options for such training spots. Making what happened in KMS (Every good and famous spot being 24h full) more uncommon on there.

What do you mean doubled?

EDIT:I'ma see if I can play I have my gfs old log in info. What do you do after you get both files?

I mean that the way JMS has Ximending and Kerning square mobs in date. I just mentioned that because JMS had no Neo City data, nor the real golden temple one.

Did Imperial Guards get improved? (the things with 9.43m HP and 11k EXP)

Well, let me try to explain this. Imperial Guards were created for a reason, they are obstacles, summons from Dunas, Core Blaze. This is the reason they have 9m HP and just 12k EXP.
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NexonNA, for no reason, just scrambled up mobs from Neo Tokyo into a "Neo City Expansion". They just took the ones that looked better to fit there. A giant tank and a pineappleing badass robot? Hell yes. They didn't even think on the fact Imperial Guards weren't monsters to be trained on. But just annoying pieces of crap summoned multiple times to piss off players.
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I still don't get why they've chosen those when they had all the other monsters from Neo Tokyo, within the fact they copied off monster infos. Royal Guard wasn't a monster that was supposed to be a boss too, but again, an obstacle, when it has 9999 avoid and the only thing that kills it is when the chandellier falls on him.
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Regardless, with the nerfs on boss HP/EXP ratio, Imperial Guards got their HP decreased drastically to 200k, EXP is kept at 3320.
But they've nerfed it to make them easier to get past when fighting Dunas, again, they're not even that common to be summoned by those bosses.
We still have to wait until GMS gets them, since they're real monsters out there.