Well... I guess that depends on your meta. If you see a lot of Trainer Lock - mainly VileGar/VilePluff - Blissey PT is probably your best option for getting rid of those pesky Trainers. However, I don't think too many people use Poké Healer + in decks, just since you need 2 for it to be really worth it. That said, Moo Moo Milk (flip two coins, for each heads, remove 3 Damage Counters) is commonly used, and Life Herb (flip a coin, if heads, remove 6 Damage Counters and 1 Special Condition) isn't that rare in my area either for healing.
Then, there is also that classic Super Scoop Up or (Switch/Warp Point)/Seeker combination for healing.