Preference and potency are two different things. You're stating you don't like potency on either sativa or indica side of things. (No couch lock or racey)So you can absolutely like ihg better than other stuff based on personal preference, but it's just not as good on a lot of testable/factual levels. I would almost say that the strains you're going to like best based on the info youve given to be probably 5-6/10 overall in comparison to all strains because, while I'm sure you don't like shitty tasting/smelling nug, you don't like couch lock or racey. So you should be a big fan of purple strains. Great taste and smell, but lacking potency.
I guess I misunderstood in when giving a strain review with some kind of scale, that potency is part of that scale. And IMO you can hit over 5-6 on a 1-10 scale overall without having the potency factor fairly largely. I guess you could say 10/10 for taste or growth rate, but IMO you can't say a strain gets an overall 9-10/10 without it being killer in the potency department. My fault for misunderstanding your opinion of what you like to be an actual measure of how the strains perform overall.
Purple Urkle tastes 10/10 IMO, but the potency and growth rate/yield is, more or less, a 4-5/10. So I feel like the strain maybe a 7/10 overall. More a 6/10 for me but it breeds well. So maybe 7/10. Lol, but that covers taste, smell, potency, breeding compatibility, growth rate etc. not just my personal preference.
The original blue power was a great strain though not the ihg crosses is say 7-8/10. I don't know about ihg holy power though lol.