Agree, not that CoH 2 is bad, but since both looks the same, the obvious thing to compare is the story, and I think CoH 1 tells the story better. Feels like it is just a repack sales.

I have just finish replay 1 & 2, didn't have Opposing Front.
2 is better at game mechanism while 1 still has a better story presentation. Eye candy wise, not really noticeable when you're playing. The 2nd one is more convenient in playing like you can merge troops, pick up more weapons, fire their upgraded or pick up weapons from vehicle. Can build further away.

Can't play with my PC because of Steam...

Steam aside, both games are solid WW2 RTS in my book.