Binder has less emphasis on Wisdom. Charisma is my biggest/most important attribute since it gives me a bonus with binding vestiges and ups the save DCs. I think the big difference between the pure Binder and Clr/Lock is that the Binder can change any tricks, any day.
As a Warlock, you have a few abilities usable at-will, plus Eldritch Blast. Cleric gets you some neat spells, too. You're likely to be more range-focused than me, while I'm more "fill in the blanks" or just "mess with their heads."
Right now, my character is oriented for magic use, triggering wands and staves, with Major Image (more-or-less at-will) and Phantasmal Killers pretty much whenever I feel like it (at-will, 5 round cooldown is all). But like I said, that is "right now." If we need more front-line help, I can switch vestiges so I have Fast Healing and free magic Full Plate. Or switch to a vestige that lets me call lightning bolts or summon an elemental... Like I said, "fill in the blanks."
Like I said, you will have the archery/range advantage. I can help out, but won't do as well, in all likelihood, but I can switch my abilities around really easily. My character is very much 'jack of all trades, master of none.'