Personally I prefer round dials for real IFR. When you scan, you don't need to read the number but remember where the needle is pointing. So, with the conventional radial scan, look at ASI, see the needle then as you look back to AI think "is it where it was?". If the answer is yes go on with your scan, otherwise fix it. Similarly for the rest. I often fly a C172 with G1000 - a complete WOFTAM and a huge waste of payload IMHO.
After 27,000flight hours I'm accustomed to glass - 20 years - and analogue and I prefer analogue.
Transition to glass is dead simple - it was for me anyway - but I am reliably informed that going the other way - back to dials - is much harder. What are you likely to fly "out there"? Analogue I'll bet.