Something like
Speed : x3
Unit : x2
Night Bonus : 00h->08h or none
Count Distance : 50
Conquest Protection : 20 Days
High speed units are hard for the start mostly where you need to be there almost always or you need a ton of units to protect yourself, there are few minutes where you don't look at your game and you could lose all your units so easy (when you're a raider as example).
Also, 30 days of Conquest protection is good mostly when you play in x1/x1 world, in x4 or x3 you're almost ready way before so i think it's better to have less days.
For the night bonus, I did a world (French world 29) where it was none. That was a great experience, I can see why people really want to have it thought.
x3 or x4 because in the long run it's easier to beat guys who use hardly their money where as in x1 it's way harder. (And in 2020 people hate to wait)
Thanks for asking.