To be fair I have no fond memories from Arce. I don't think there is a reliable source on how many games he played during those cup runs or what was his part. I agree that he was a great FK taker not only for scoring but also crossing the ball. The dead ball situations were Paraguay greatest strengths during the WC, with him and ***** taking the FK's, I think they scored another one in 2002 from a header from a set piece (may be mixing it up as I saw a lot of FK goals in WC these days)..
The goals games ratio is generally be higher of course since he played at weaker leagues at that time, compared to **** and Carlos. If Wiki is correct he has only 5 goals for Paraguay, so it's not that spectacular number.
Well CWC is a 2-3 games competition in the middle of the season which IMO is kinda not very good to compare the strength of leagues as there are one off matches. My point for playing in Europe was because most of the leaders that Paraguay had at that time - *****, *****, ********, *******, ***** ****, have played, or played in Europe at the time. But of course there is a point that gull backs are generally less noticed.
Srna imo is a bit better. And no actually I've seen the guy live couple of times and he once scored a brace against my NT, as we were drawn against Croatia for both WC and Euro's. He has taken part in 3 Euro's and 2 world cups. Also he's frequently in CL or Europa league. So yeah I know Darijo Srna.
I don't think Srna is great either, just answered to the direct comparison. I mean depends on who you compare him to. If you compare them to the 2 RB that are already picked they are of different class.
To be fair apart from WC I don't think anyone has vivid memory about Arce. I think it will be hard to sell him, as generally not many people remember him or know something about him. Just my .02 of course