What is good Thermal paste?

[broidk]

What is the best thermal paste? Like I see a lot about arctic silver or arctic cooler?

 

[Dark Lord of Tech]

MX4.

 

[Dark Lord of Tech]

PCPartPicker part list / Price breakdown by merchant

Thermal Compound: Arctic Cooling MX4 4g Thermal Paste ($5.89 @ OutletPC)
Total: $5.89
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-11-04 17:54 EST-0500

or

PCPartPicker part list / Price breakdown by merchant

Thermal Compound: Gelid Solutions GC-Extreme 3.5g Thermal Paste ($12.88 @ OutletPC)
Total: $12.88
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-11-04 18:56 EST-0500

 

[taopc]

Prolimatech pk-3