I also like using cedar, and also redwood. Part of that is I have an ample supply from various construction projects over the past couple years...
The part about cedar that i find can make it tough to carve is the very different density of the hard and soft growth rings. I have mostly red cedar. There is variation from piece to piece in this too. Overall though it is easy to saw and shape, it's pretty strong and durable, and it is very boyant. Another plus is how nice the shop smells when the dust settles! (I use a respirator to keep the dust from settling in my lungs).
Overall though I take a very utilitarian approach, and use whatever I have handy. As other have mentioned, each type of wood has its own characteristics and quirks, and I find it fun navigating that variability. I've used oak, pine(s of all sorts), pvc, basswood, maple, cedar, redwood, etc...