Having over 150 spiders (slings, Juvs and adults) I keep turks and Dubias.

The Turks move quick and do not burrow. They stay small and the babies can be fed to spiderlings. Adults get to be as large as an adult cricket so you wont lose out there.

The dubias are nice for my more larger and aggressive species of tarantulas that will eat them right of way. Many T's however will not eat the dubia due to the fact that they play dead. They will also burrow in the substrate.

So, I prefer both and there is no smell at all and have a better meat to shell ratio in comparison with crickets. Depending on suppliers, crickets are big carriers of mites and will lay eggs in humid enclosures. They are just nasty in my opinion. Roaches are the best.

If you plan to expand your spider collection, I do recommend both. They are easy and cheap to care for.