OK geezers. I'm no expert on Portuguese clubs or the Korean national team but this is what I have found out:
Korea team seem quite good.
Almost all the players have at least 1 stat over 80.
Quite a few have a whole bunch of stats in the 80s.
One guy has a 90 for something.
They play in a 4-2-3-1 formation.
I think Korea are now rated quite a bit higher in WE7.
At a rough guess, I would compare them quite close to Wales.
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Portuguese clubs, here are the team stat bar appoximate values.
These are just guesses based on comparison and may not be 100% accurate but what is correct is when you compare the teams directly. If one has a higher stat, then this is taken from the bars. The actual values of the bars are tricky so apologies for that:
Benfica:
Offence - 7
Defence - 7
Teamwork - 7
Speed - 8
Technique - 7.5?
Porto:
Offence - 6
Defence - 8
Teamwork - 7.5
Speed - 7.5
Technique - 7
Sporting:
Offence - 5
Defence - 8.5
Teamwork - 8
Speed - 7.5
Technique - 6.5
Please don't blame me if you are not happy with these descriptions.
That's the best I can do for now. Hope it will help a bit.
Don't think the stats are biased for the clubs - maybe the makers don't have much access to league info for the clubs?
Based on the team stats bars, Celtic are better in all ways, by at least one and up to 2.5 (?) notches on the bars. Someone already gave their opinion about the relative squads.