Anthony, you deserve so much better.
It's kind of a tricky question to answer as I think there are pros and cons to both. To keep it concise, at the end of the day I think the old timers (sort of eyeing the 30s-50s in particular) were greater and reached higher levels due to almost constantly having to challenge themselves against the best opposition available while being in almost perpetual fighting shape. These days, just having two top rated fighters get in the ring is looked at as treat where as back then this was the norm, and there were far fewer divisions in which to be 'rated' without any easy-out trinket straps to stage shit 'title defenses' for. The downside is that when you are learning and honing your skills and ability on the job, fighting name opponents regularly, you're going to pick up a few losses for your troubles especially fighting on the type of schedules they did to earn a living. W-L ratios it would seem have gradually come to be ever so significant in the recent modern climate.