Best one I know of for comparing heroes with/ without emblems is https://titanmafia.com/
Do need to create an account to use it but the accounts are free to make.
Comparing heroes:
Once there you can access the comparison & class node comparison stuff by going to “guildware”:
Comparing emblem & emblem paths:
Forum Thread Links by the creator @Razor
Class node Comparisons: What-if analysis made easy - talent tree / classing (Class Node BOM(b))
Hero Comparison (hero Utility): Empires & Puzzles - Hero Utility (Bringing it All together for you)