It depends upon what you mean by "evolution". If you mean, "any change in the frequency of alleles within a gene pool from one generation to the next" that's one thing. If you mean, the successive changes "that led from the earliest protoorganism to snails, bees, giraffes, and dandelions", that's quite another. The former is observable. The latter, however, purports to account for the natural development of all life from a simple beginning, which is not an observable, and which consequently is a completely unneccessary accounting for a thing that was never observed in the first place.
Cordially,
there really isn't much difference between these two concepts. The human genome has fewer genes than any of thousands of "lower" organisms. The working code is tighter, but has fewer lines.
The real increase in complexity occurred during the billions of yers when life was single-celled. All the computational machinery necessary to produce multi-celled organisms is present in single celled organisms.
Evolution, meaning exactly the development of all life from a simple beginning, is the best explanation for the existing evidence. The alternative is to believe that a designer, or "God", zapped species into existence by some unexplained manner. And this "designer" killed off entire species, as he was creating more over a long period of time, but has apparently stopped doing this magic, as no new species have appeared that were documented to have previously not existed.
Sorry, but there has been no evidence of a designer found (non-fatal critisisms of evolution are not positive evidence FOR a designer), he is not observable, not testable, and such a designer is completely unnecessary since the completely viable explanation of evolution is at hand that does have a great deal of evidence to support it (although, not infinite evidence, which is apparently what is sought by some).
For myself, I believe that God's greatest creation was evolution. As an engineer, I can recognize an elegant solution to a difficult problem. The designer of evolution truly was intelligent.