Which's the better classifier to use for skin issues identification using matlab

My project consists of extracting color,texture and shape features and try to identify skin conditions,i'll obviously need more than 10 classes(diseases) and have around 40 to 50 samples of each to train,i've done my research regarding Neural networks,KNN,Naive Bayes,Multi class SVM and others but i'm still indecisive regarding which to use knowing that the most previous researches in this field are usually 2 classes using SVM or knn,so any advice or guidance would be appreciated.