I'd give the nod to 2014... But what really matters is who gets hot at the right time. In 2011, after Game 3 vs. Montreal, we were just red hot. Went on for pretty much the rest of the postseason with a few valleys in between. 2012? We couldn't buy a goal. Losing Horton hurt a ton, but that team was better than 2011. We didn't get hot, first round exit. After Game 7 vs. Toronto, we just went on a domination streak. Couldn't get past Chicago, but we were hot for the rest of the playoffs.
Lucic, Krejci, Marchand, and Bergeron are all better and more experienced now than they were in 2011. Iginla = Horton, but he'll have to match his playoff heroics. I'll give Rex the slight edge over Smith. 3rd line is close... Depends on if Eriksson gets back to his former self, which I expect he will. But it's hard to overlook how Ryder and Peverley could take the 1st/2nd line spots when an injury came, and we didn't look any worse for wear. 4th line was better back in 2011, they were the best in the league. Thornton and Campbell have both really lost a step, although I'd argue Paille is a lot better. He always steps it up in the playoffs, too. A Paille-Kelly-Campbell line would be ideal, and potentially better. But as of now, Paille-Campbell-Thornton is looking pretty rough.
Defense is worse. Chara is about the same, maybe a bit worse. Seidenberg is out, which is massive. Ference came up huge for us. A lot depends on how Krug and Hamilton, and potentially Bartkowski step up. But it's hard to beat that defense.
Goaltending is about equal, but it goes to Timmy. We don't, or at least didn't last year have to rely on Tuukka as much as we relied on Timmy back in 2011. But if Tuukka steals Game 4 vs. Chicago by just letting in one less goal in that 6-5 game... We head to Chicago with a 3-1 lead in the series. Can't remember a goal in that game that was really his fault, but sometimes you need to make a superhuman save.
Overall, offense is a lot better. No question if Eriksson gets back to his 60-70 point self, and if Smith keeps up how he's playing. Defense is worse, but the kids can make it a conversation. Goaltending is about equal, maybe a little worse. I'd say this year is better, a lot of it based on experience. But again, a lot matters on whether or not you get hot at the right time.