When asked to describe the "pinnacle of rich flavor, powerful body and strength", as cigar smokers, we all know that is subjective. There are a few factors that must be considered before replying to such a request.
1) Are you a new smoker or a seasoned veteran? A new smoker wouldn't enjoy a stronger tobacco taste while someone with a few more years experience would. Stronger cigars are usually better appreciated over time if you slowly ramp up your palate. To go from enjoying a lighter bodied cigar to a stronger cigar too quickly may be a little intimidating to your taste buds.
2) Where are you presently in your smoking cycle? Most of us who smoke frequently have a tendency to vary the strength of the cigars we smoke over time. My personal smoking cycle would look like a 'sine wave' if charted over 12 months regarding the strength of cigars I smoke. When I smoke a lot of stronger cigars, I find I loose their taste over time...call it taste bud overload if you will. When I reach that point (the top of the 'sine wave') I usually stop smoking for a while and then slowly reintroduce my palate to a medium body smoke (bottom of the 'sine wave') when I start up again. For this reason I buy many different strength cigars to accommodate this personal pattern.
3) Can you you psychologically handle a strong cigar? I know many cigar smokers who have enjoyed cigars for 30 to 40 years and still can't mentally handle a strong cigar. By that I mean I would offer them a cigar outside their normal smoking habit and once lit and smoked for a few minutes, they say it's not for them...too strong on the tongue. I would further explain that the cigar will smooth out over time, maybe outside the first third, and still they would refuse to continue smoking it. Once they experience that initial stronger bite on their palate, their brain says 'NO MORE'.
4) If you try a stronger cigar and enjoy it, will your existing inventory of cigars withstand the switch? Let's say you are smoker who consistently enjoys a light to medium bodied smoke and your humidor shows that taste based on what you've already purchased...once you experiment with a fuller bodied cigar and decide you like it, your cache of cigars will prove to be less attractive 'taste wise'. While this experiment did expand your appreciation to a whole new realm of cigars, usually your pocketbook suffers in the pursuit of this different taste profile. The upside of this experiment is that you wind up with a much more diversified inventory of cigars to fuel the 'sine wave' approach to smoking.
Even as a former cigarette smoker, you may be surprised how different a strong cigar can be tolerated due to the increased amount of nicotine in the tobacco.
As a few members have posted before me, Tatuaje make quite a few fuller bodied cigars. Stopping at your local B&M should satisfy your curiosity with a sampling of a few different blends. I personally don't smoke a lot of Opus X as they just don't hit the sweet spot of my palate...and God knows I've smoked more than I should have in the pursuit of finding one I like. I also think they lose their flavor over time if aged over 6-8 years. To experiment with them to experience fuller bodied smokes, I think it's cost prohibitive when their are many other you could try for less money...the Chisel as was previously mentioned is a nice fuller bodied smoke for less money. You may want to try the Fuente Anejo line of cigars, while not full bodied, they are a nice step up from a lighter cigar and reasonably priced for a 'premium cigar'. Some of the new CroMag cigars are worthy of a try as well...as is the new Viaje Super Shot line...12ga and 10ga.
Good luck on your journey, it's trips like this that instill the passion of this hobby within us all.