So, the problem is versatality or the number of abilities which you have to choice from doctrines?
Ok, let's find out the difference in ability count between cons and grens:
1) Faust;
2) Grenade;
3) Meds;
4) Comuflage;
5) Machingun;
6) Long range rifles;
7) Interrogation.
One skill difference?
If you question versatality, I would say grenadier = conscripts with a little difference in use.
Don't think I am soviet player. I play both. Agree about weapon crew size only, but as I already said - it is a fair trade for armor disadvantage of soviets.
I completely disagree with you on that one. A lot of what the Grens can use costs a lot more than whatever the cons end up having to use.
And the cons tend to have a lot of "Press this button to win" abilities. Oorah costs virtually nothing (EDIT: 10 muni - you could get that in about 10 seconds from your opening point...). HTD costs nothing and trip flares (very useful in non Priyapat maps) costs nothing, unlike what the grens have.
I find the cons far more versatile than the grens. Apart from having six man squads surviving everything, you are going to output cons faster than you are going to output grens due to the fact you actually have to build T1 with the Germans before you can start getting grens.
And when cons are supplimented with shock troops, there's almost no point getting grens/PGs anymore as you will lose every infantry battle unless if you're blobbed up. That's when they start using their SU-76 to hit your blobs.