Help-focus tree on low tiers???

[AOD_Neroline30]

I've played with almost all low tier focus trees (I've just neglected Sweden and Italy)… But I haven't gotten a main focus tree i want to go with... Any suggestions?
PD: I usually play realistic air and ground if that helps

[AOD_Mustang99]

Its kind of hard to pick one tree because different nations have different experiences depending on the BR. I pretty much just play what I feel like playing or am closest to unlocking the next vehicle.

[AOD_Ovinus]

My totally subjective and somewhat memey opinion (this is primarily up to BR 9.0)

Ground
US: Mediocrity at its best, average everything, somewhat on the slow speed side, but does its job in the hands of a competent player.
Ger: Firepower above all else
USSR: Armor above all else, and russian Bias
Brits: You can pen pretty much everything, but it takes minimum three shots to kill anything

The other nations don´t have a "fully" developed tree (yet) and I wouldnt consider them main nation worthy so to speak. I also have less experience with them.

[AOD_Neroline30]

Ohhh, thanks man

[AOD_SabreSixFour]

Sweden is a good one if you want to grind out a full nation. Tanks have good starting ammo and decent armour. The planes are a bit tougher as Sweden does not use tracers and their CAS is a bit lacking but for air to air they are able to hold their own.