Intruder, there is little safety benefit in choosing between two subjective and possibly misleading sources of information.
AFAIR Airbus landing data is based on contaminant type and depth.
Your subjective 'anti-skid' assessment is a personal choice which has little in common with the descriptions in the TALPA matrix. Thus your PIREP may be another 'meaningless' source of information - you know what it means, others might not. Is that a help or hindrance for safety.
The implication that a PIREP can be used to determine landing performance is frightening; using assessments from different aircraft types, without knowledge of reverser or brake use, landing speed, weight, or the reporters' experience ... ... hazardous
As I interpret the TALPA information, PIREPS are not to be used to determine runway braking action; the initial process requires a ground based assessment based on contaminant type, depth, and extent of runway covered. The new proposal of using vehicle assessments to revise (downgrade) the braking action appears to be of limited use and could be misleading.
If the FAA think that PIREPS have a use in down grading, then ok, but don't rebroadcast them with the risk of misleading pilots or giving false confidence about the conditions; see LGA MD 88 accident,
http://www.pprune.org/rumours-news/5...lot-error.html .