Guess it really depends what you wnat to do with our license later - if you are after an airline career, then perhaps the glass cockpit (which, after all, is what you'll be flying commercially) may be better. Otherwise, I'd go for the steam gauges, not least as the rental fleet still largely has these.
As for the a/c. Depends a bit on your size. I personally hate the 152 but love the 172 and 182. The 152 quite simply doesn't feel right for my height (as does the Katana, btw), I have to squeeze myself into it and simply don't like the thing. I'm sure there'll be someone along in a second to say how great it is for 7ft basketball players, but that's my 2 c
All considered, I'd go for a steam-gauge 172.