(and why ichiruki is wayyy better)
Because Ichigo thanked Rukia so many times. HE HASN’T EVEN THANKED ORIHIME ONCE. NEVER. Which means that he actually appreciates Rukia more than that slutty Orihime bitch.
Actually, if you look here, you can clearly see Ichigo thanking Orihime, like he’s done many times in the past. Re-read the manga. You’ll find that he does more often than you’d realize.