For those who are interested:
http://tukijaverkosto.org/obat/map.html
It contains all the units in V5.0 with modified finnish unit list. All the similar units (except for class and weapon class) are held together. You can use that for example to search for similar units in other nations if you know what you're looking for. I'll probably improve the user interface at some point.
Use example: You want to see if the Flak units have good charasteristics together. You pick the Flak class from the map and choose a unit to check and click on the obatslotno column of that unit---where tooltip says "find units similar to this."
For canadian Bofors 40mm it takes you to
http://tukijaverkosto.org/obat/?uid=13222 where you can compare and find that for example the Algerian (and many others) 40mm AAG has a fire control 10 compared to canadian 3. So it could be that the Canadian AAG should have an increased fire control or that it has less good aiming help.