Heartseeker vs. Ritual Dagger Early Game?

So I've been messing around with the new heartseeker and ritual dagger and I don't know which one is better early game. I usually play assassins like Kali and Awilix and Heartseeker is doing really good on both of them. The plus 40 power buff and the plus 20 or 30 power buff on Incense is extremely good for ganking with Kali and Awilix's passive just does really good with Heartseeker to just unload all of your abilities on an enemy. But Ritual Dagger provides health, cool down, and attack speed which kinda helps both of them early game. The passive also helps keep gods on lockdown since I usually get curse first. I don't really know which one to choose so if you have any thoughts or any ideas on how you feel about them I'll gladly read them in the comments!