I prefer the bottom one, but I'd dump the ladik mixer and the blank panel and add another 4* mono channels or a 4*stereo channels depending on needs...
why? - tex-mix is expandable - and eventually you'll probably go past this small 9u rack at which point you can just add more channels modules as you need them - which is what I'm doing: I currently have 2 * 4mono channels and a 4stereo channels - and another mono channels to debug - currently squealing like a pig... and (3hp) douts are very useful!!
"some of the best base-level info to remember can be found in Jim's sigfile" @Lugia
Utility modules are the dull polish that makes the shiny modules actually shine!!!
sound sources < sound modifiers < modulation sources < utilities