You messed up the quoting so i'll break them out.
well can you make your mind up, either Marcelo's absolute runs are significant or they are not - i have pointed out that whilst he has beaten bigger players, they were scarcely what one might call Elite. you said weight doesn't matter, well it does when skill is similar, it doesn't when you are fighting someone heavier you outclass. I would put Brock's grappling prowess coupled with his physicality above Ricco or Rolles or Van Arsdale.
In any case, one can win ADCC without attempting a single submission hold, so i think you are going down a rabbit hole to nowhere by trying to differentiate relatively between submission wrestling and wrestling. put world beaters like Taymazov or Makhov to one side, any world top 10/20 freestyle or greco wrestler would ruin at least 90% of their opposition just through dint of their greater physicality/athleticism regardless of their oppositions' sub grappling prowess.
*yes his kryptonite.
*I trained with Roger for 7 years, so i might have a slightly better insight into him than most. the fact i am not jumping all over the thread saying "omg omg Roger is the greatest, Roger FTW " but engaging in reasoned argument about where he might not fare so well should tell you something.
*Jacare beat him in the 2004 and 2005 Mundials Absolute finals (Roger beat him in the 2005 european absolute final and 2005 ADCC absolute final).
*Roger did not break his arm, he hyperextended his elbow resulting in ligament damage.
*Xande beat Roger at the 2006 and 2008 Mundials Absolute finals and the 2006 Pan Ams Super Heavy Final.
*Xande may play points against Roger, but he has his share of subs to, at the 2006 mundials, Roger and he subbed all their opponents barring each other in their final.
*Any match he has against xande or jacare would never be easy to call.
*Regardless of when he beat him (and they last fought in 2007), Jon Olav is perhaps the guy closest in style to my mind to Roger and probably his most dangerous opponent to date.
*again, i feel Roger struggles with shorter, powerful, explosive, top game players, the 5 defeats against Jacare and Xande go some way to bear this belief out - a prime Arona or Monson could well have beaten him, but since he never fought them, how he fared against other grapplers is rather irrelevant. equally how monson and arona have done at ADCC against other grapplers (rather well actually) is also rather irrelevant.
what exactly has Arona ever done to distinguish himself as a submission wrestler distinct from a wrestler in ADCC - he hasn't ever submitted anyone. you ignore my comparison with Ortiz, a smaller, less accomplished wrestler than Brock who took Arona to a refs decision when Arona was in his prime.
and again, you cannot say sub wrestling and wrestling are two totally different styles when people who are moderately good at the latter (kerr, arona, ortiz) have already had success in the former.
and it is total inaccurate to say that arona is 10x more technical or faster or whatever without providing any specific comparators.
based on his nfl combine stats alone ((at 6'4'', 296lbs - 40 Yard Dash: 4.65 seconds; Vertical Jump: 35 inches; Broad Jump: 10 foot; Bench Press: 43 reps of 225lbs) i'd say those indicate brock is a more explosive, faster athlete than arona. Absolutely no way would Arona put up those numbers any time in the last decade, even when he was chemically enhanced.