I'm really glad I got Marvel Unlimited last year because overall the series I have read on there have been really good.

However, I have noticed that there are older series that are very dated and others that feel like they could have been written recently. I think it has something to do with the amount of popular culture references and how much real life events influenced the stories.

Just as an example, the Sentry series from 2005 has very little references and was very easy for me to enjoy, whereas I just started reading Ultimates from 2002 and it is very much influenced by the time and not necessarily in a good way.

So I'd love to hear what older series you guys would recommend for me to read that are still as interesting today as when they were originally released. Thanks for any suggestions!