Pretty sure LTT did a video on this and there was basically no difference in temps when applying paste in different ways, and even applying different amounts.
Personally I use liquid metal because colder temps helps keep my PC silent, and I like to live dangerously of course. A tiny blob in the middle and then I smear it into a very thin layer over the IHS using a cotton bud. Liquid metal will always give the best temps but I cannot recommend it unless you are aware of the drawbacks (e.g. electrical conductivity, aluminium corrosion) and really know what you're doing.
For traditional paste I recommend Arctic MX5. IMHO Thermal Grizzly products are overpriced.