ya but dont forget when tracy cared with misty for ash in the "Pikachu Revolts" episode (with butch/cassidy and drowsey) and how he was caring enough to help ash get through it... he also was the 1 who asked where T R was when they fled saying they also deserved the town medal of honor. this shows, he cares for all and doesnt hate team rocket like brock has more of a feeling towards. Brock's pokemon may have helped more but thats b/c while traveling w/ Tracey, he gave ash moral support, showing he didnt need pokemon to help ash... ash was also always talking more to misty in emotional situations, but with tracey around and w/ a calming voice and sweet understanding can help ash move throguh situations and could very well be a therapist. maybe looking at the future lives of both and seeing who contirbutes more for the ppl/pokemon/world would help you consider. Tracey can help people though emotional journeys, can sketch and educate, and by assisting the proffesor must have gotten some valuable info... brock may have helped the world with breeding, but seeing any possible girl would distract him and almost guarantee he forgot about important things... he isnt very reliable... i mean he abandoned ash randomly jsut to live w/ prof. ivey, what does that say about their friendship?