Iāve got all 3 (but earlier Mojo EXB) in my opinion they are all quite different but the same, being as they are all SCTās theyāre all tough but all have weaknesses in my opinion..
Shiroi.. the body, bumpers and body posts arenāt the greatest but the truck overall is nuts and mega tough, run mine on 4s as 6s is just too much.!!
Mojave.. I hate to use this quote, but this thing is Arrma tough, for me I constantly broke body mounts until they upgraded them, now I break them a lot less

I run mine on a Castle
mmx8s system only in 6s and I drive it like I stole it, this thing gets some serious abuse.!!
MaxxSlash.. for me itās always been overpriced for what it is, but what it is, is insane.!! Run mine only on 6s and itās just stupid fun, drive it like I stole it, has had the least breakages of the three (last week was biggest breakage since owning, destroyed pinion and spur) in my opinion the overall build is easily the toughest of the three, mine is bone stock and I wouldnāt modify it as I think itās just right straight out the box.!!
On a side note, everyone always says the Arrmaās are the best due to all the upgrades you can get, but letās be honest if it was great out the box you wouldnāt need all the upgrades.!!
Traxxas has a lot of their own upgrades but I believe they are just there to relieve you of your money and are just not needed.!!
And lastly the Corallyās, they too have their own upgrades but in my opinion are not needed either they are just bling ( the best kind of bling, true hop ups)
Over the years I have gathered a lot of rigs from many many brands and what Iāve learnt is Arrmaās are not tough

Iāve wasted so much money on Arrmaās trying to right their wrongsā¦ā¦
So back to the original post, buy the Shiroi or Slash.!!