Summoner gear question

[horaiyo]

Save your myth, the belt sucks hard for SMN. The INT boost alone doesn't make it a worthy enough purchase.

Not necessarily, that really depends on what items you have available for use. If you can’t afford to lose accuracy with your current setup, the hero belt is a good upgrade.

As far as the original question goes, the only secondary stat that arguably trumps your primary stat in importance is accuracy (assuming you’re not at cap currently). Beyond that, you should pretty much always opt for the higher ilvl option.