which approch is efficient- installation through template or CC UI

Hi All, I am upgrding from wMv9.5 to v10.1, there are three different dev(dev1, dev2, dev3) test(t1, t2, t3) and prod(p1,p2,p3) environments, each env has its own machine and server instances. Please suggest whether I should go with template creation for each machine or instal through cc UI. pros and cons of both. Thanks!