The spines on this one are very similar to Pachypodium densiflorum, I find them very attractive, something nice to look at when the plant is dormant.
You wouldn't want to run into a good specimen of Pachypodium lealii or saundersii, the sharp needle-like spines draw blood! I used to have a huge plant in the living room window, that's when we started to use a golf club to draw the curtains in the evening.