Yes it ABSOLUTELY lets you be a powerhouse. Doubled points invested in attributes and abilities easily doubles the damage you deal. A lone wolf with stacked leadership provides 40% dodge and 60% resists to his ally (and any summons, summons still don't disable it), cutting incoming damage in half. 2 more AP per turn is half of the actions of another person, and you're more likely to get executioner procs.
It is certainly possible to be more powerful with a 2 man lone wolf party than a 4 man regular party. It doesn't even require building all That carefully to do, and in fact due to the doubled bonuses otherwise questionable trees like leadership or other defensive abilities open up for use. It's pretty awesome, and definitely interesting. Don't underestimate it.
