I see no real problem with the split. There are so many ways to skin a cat. Champions have used all different types of splits. I think the most popular through the ages is chest and back, legs and delt/arms used by such guys as Scott, Padilla, and Robby. Another is chest/arms, legs, back/delts used by Yates before he went to his 4 way split. So many in the 70's split the body in half every training session. Dickerson and Mentzer were fond of Legs, chest, tricep and the next day back, delt and bicep. It's really popular now to train a body part directly once a week. Five day splits are the latest thing it seems.
I use splits but I have made really good progress with whole body routines. Contrary to popular opinion they are a lot harder than doing a split. Start with legs and work down to the smallest body part. With a whole body routine 3 times a week is ideal but if you get 2 or even once a week you are still moving forward.