onebeatuptc3-Great Question but kinda open.I will try to help.
The Fukuyama Mako is a great motor tuned mainly for sedans.
It's the Trintity Revenge of the Monster MINT GREEN CAN version from Fukuyama.
If you wanna race a different class you will either have to change gearing compared to most or make a few changes to the motor.
Fukuyama as a company works very hard on their motor's doing what alot of other tuners do and their own lil tricks.
Good Motor's.
Fantom Stock-You left this one kinda open.
You didnt specify which CAN of fantom stock motor's you were talking about.
They tune off the
P2k,P2k2,GM3,Monster and Binary's.
If you want me to compare Fantom's(Monster Version) and Fukuyama's(Monster Version) then I would say for sedan on medium to bigger tracks it would be Fukuyama due to the brushes they use.
On the Fantom Version it's better for offroad and Smaller-Tight Onroad Tracks due to their Brush Choice.
Fantom offers a couple versions of their motor's though.
They have a TEAM version and then a LIMITED version.
If you can grab a LIMITED version fantom these are extremelly nice motor's and then you get into Brush Wars to which Brush works best for YOUR track and the particular motor your using.
But tuned out of the box I would go with what I stated above.