for the first one id try a 4-2-1-3 with a long ball counterattacking game. your MC should be set to a red arrow so he is focused on attacking so that when you do get the log balls forward you can out number his defensive players.

DL - DC - DR
ML MC-MC MR
AMC
ST - ST
vs
ST ST ST
MC
- DMC DMC -
DR DC - DC DL

your defence and DMCs should take care of his attackers and you always have a good chance when you get the ball on the counter. please note that i am no expert and am only a level 3 player, but i dont buy tokens and am doing fairly well. Like you im in the cup final...im 2-0 up in the CL semi final and am sat 2nd in the league(but i have a bad run in and dont think i will finis top