I'd rather have Thommo than Merson. Le Tiss was always alright at summing up after a game but he came across as liking the sound of his own voice too much in everything else. Incidentally I saw one of Gary Neville's Sky programs where he sits and watches/talks about ex players careers and Le Tissier was Smuggy McSmug on there talking about himself.
None of those are a great loss - Thompson is the most bearable of them but I've never understood the need to have such ridiculously obvious bias in a pundit. Le Tiss has the same problem but he's just a bellend on top of that.