Really, if you want the effect of a distant vengeance avenger/seeker without the rules debates, make a half-elf Avenger with seeker dilettante and a few power swaps. Here's a sample skeleton build for 11th level:Spoiler:
====== Created Using Wizards of the Coast D&D Character Builder ======
Half-Elf, Avenger, Half-Elf Polymath
Avenger's Censure: Censure of Pursuit
Half elf Power Selection: Dilettante
FINAL ABILITY SCORES
Str 11, Con 16, Dex 18, Int 9, Wis 22, Cha 11.
STARTING ABILITY SCORES
Str 10, Con 13, Dex 15, Int 8, Wis 17, Cha 10.
AC: 25 Fort: 22 Reflex: 23 Will: 26
HP: 90 Surges: 10 Surge Value: 22
Religion +9, Nature +16
Acrobatics +9, Arcana +4, Bluff +5, Diplomacy +7, Dungeoneering +11, Endurance +8, Heal +11, History +4, Insight +13, Intimidate +5, Perception +11, Stealth +9, Streetwise +5, Thievery +9, Athletics +5
Level 1: Weapon Proficiency (Greatbow)
Level 2: Bow Expertise
Level 4: Distant Vengeance
Level 6: Primal Sharpshooter
Level 8: Action Surge (retrained to Versatile Master at Level 11)
Level 11: Painful Oath
Channel Divinity: Divine Guidance
Dilettante: Biting Swarm
Primal Sharpshooter: Grappling Spirits
Vicious Greatbow +3, Magic Githweave Armor +3, Safewing Amulet +3
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Half-Elf Polymath will let you pick up a ranger at-will that you can swap for the hunter's clever shot with the archery master feat at 16th so you can have a good mix of accuracy, control, and damage. The PP power lets you supe-up your seeker at-will. The 10th level feat is open to preference, a power swap, superior will, weapon focus maybe...12th level you will want primal eye to further stack damage, and of course picking up bracers of archer/perfect shot as they become available. Starts off a little weak due to the advanced creation item rules, but even by 12th level it can jump up. Alternately, if you aren't as concerned with your defenses, you can just by vanilla +2 neck or armor (or both) and use a slot on heroic tier bracers of archery.
So the function is pretty easily achievable while avoiding the rules debates. If you want to play it up from heroic then you will want serene archery until you hit 11th and can retrain it to versatile master, using the Gritty Sergeant or Noble Bred for War background benefits for longbow proficiency until you can afford the feat for greatbow and retrain your background benefit.
You could even make this functional as a non-half-elf relying on serene archery at-will, and then more agressively power swapping and taking a seeker PP like crimson hunter. Or if you really want a seeker at-will, you can PMC too, and in this particular combination it isn't so crippling (and you get to brag about actually having a character PMC).