Best pam today seriously???? Check out the pam guide. Ale has dedicated 1000's of hours of time to putting that guide together over the past few years. It's insanely detailed and complete, save for some release that just hit the market within the last month and haven't been reviewed yet. On the whole though, the best pam reps overall probably are copies of older watches. Pams from the last 4-5 years are mostly using inhouse movements that can't be copied 1:1. IMO, there are a lot of outstanding pam super reps, but the Noob 111 v3/4 and 243M (v2/3) may be the best OTB reps ever made across all brands.
Last year, Ale posted his Best of the Best (valid as of August 2014). It's a good start:
Below the list of my [Ale's] current preferred PAMs ordered by types - August 2014
I write the date because the list is always changing
ALE's RECOMMENDED PAM REPS - AUGUST 2014
Luminor Base
PAM 390 Noob
Luminor Marina
PAM 417-416-411 KW
PAM 111 Noob V3
GMT
PAM 088 Noob O-series
PAM 029 Noob V2
PAM 297 Noob O-series
Titanium
PAM 177-176 Noob
Black DLC
PAM 026 Noob
White dial
PAM 113 H maker or better new Noob version
Special Series
PAM 417-411-416 KW
Automatic
PAM 104 Noob O-series
PAM 299 Noob O-series
Power Reserve
PAM 057 DSN
PAM 027 DSN
LUMINOR 1950
PAM 312 KW
PAM 127 Noob
PAM 359 KW
CHRONOS
PAM 253 H maker
PAM 356 Noob
PAM 326 Noob
SUB
PAM 243 Noob
PAM 364 Noob (pending final evaluation)
Radiomir
PAM 288 H maker
PAM 388 KW
PAM 505 KW
PAM 346 KW
PAM 380 H maker
PAM 292 J Noob
PAM 448 Clone
I hope that helps
ALE