Spike's calm and stress-free attitude is something that I admire. His love for food seems to be above everything for him. This is also noticeable afterwards, because since I've seen some of the movies again, I think that Spike can definitely be considered corpulent. As often as he got stuck or fell down because of his weight...
I like Spike as a character. There are times when I should be just like Spike. Just living without worries. I always do so many things that I often forget to stop and enjoy.
Although Spike has often brought trouble to the Gang, for example while sailing on the log in V or on the plants above the ravine in VII, I have never really got angry at him. But I normally hate characters who do such things. I don't know why, but Spike never collected a minus point from me for that. He is an exception
Without Spike, the Gang would be missing something, I'm sure of that.