Welcome to Librarium Online!
Emporers Champion, AAC=140
8 Marine, 5 Neophytes, Melta Gun, all have CCW, BP, LRC, Blessed Hull=468
7 Marine, 5 Neophytes, Melta Gun CCW, BP, LRC Blessed Hull=452
10 Marines, Melta Gun, Power Fist= 185
Land Raider, Extra Armor=255
The Blessed Hulls are there due to the high ammount of lance weaponry im getting shot by recently lol lets see those stupid dark eldar lances penetrate on a 5 now!!
Fantasy : Empire, Chaos Warriors, Chaos Daemons, Vampire Counts, Beastmen, High Elves, Lizardmen( but i have opinions on every army just not the money)
40k: Black Templars, Imperial Guard, Dark Eldar, Tau (thinking of Eldar)
Honestly, unless your local gaming scene has a stupid amount of eldar and dark eldar players in it, blowing points in a list like this to counter them is probably a waste of time. I could see running single Crusader squad rigged for assault in such a unit, but the rest of your army should probably be more balanced. Get some more ranged anti-tank units in there. Predators, Dreadnoughts, that sort of thing.