Compare like-for-like so a cheap headline rate does not become the expensive option.
Match the specification
Compare the actual capacity, accessories and included hours.
Normalize the period
Convert quotes to the same pickup and return window.
Add transport and consumables
Include delivery, fuel, wear charges and required extras.
Read the liability terms
Different bonds, waivers and excesses can materially change the risk.
Useful next step
Once you know what equipment you need, compare the full hire period, accessories, delivery and damage terms—not just the headline day rate.