Looks like did not sample enough different airlines in F.
Let me suggest to try the following F products:
CX F (very wide seats, very comfortable, 3 across in a 777)
AF F
LH F (especially on the 380 and 747-800)
LX F (especially on the 777 and 330)
Or try NH, OZ or SQ
Also check out the following lounges:
AF FCL in CDG
LH FCT and FCL in FRA and MUC
The new LX FCL in ZRH
You might come to a different conclusion. TG F is not bad, but it is nowhere near the best in my opinion.