For me, Jerome is the best of a below par bunch. Whilst his finishing leaves a lot to be desired (which is admittedly probably the most important aspect for a striker), and his 2nd touch is usually a pass, I think in most other areas of his game he is at a Premier League level. His work-rate is exceptional, he has great strength and great pace, is decent in the air, his hold-up play is good, and he also positions himself well in the box. Those are the main reasons he was so good last season.
Mbokani I see more as an impact player. He is probably a better goalscorer overall than Jerome, but the way we play just doesn't suit his style. The jury is still out on Bamford. Though in his, albeit brief, 2 appearances so far, I haven't been remotely impressed with what I've seen. He looks very slow and I don't know if he's actually successfully completed a pass yet. It says a lot really that Palace, who have had worse striker problems than us this season (going into their game against Watford on 13th February their strikers had 1 league goal between them, and that was a penalty from Wickham) were reluctant to play him. In my mind, to be honest, in this new 3-4-3 system, Naismith would be my 2nd choice behind Jerome to play up front.
The problem is despite a couple of new strikers coming and a couple going out, we haven't really made any significant improvements at all on our front line, despite having 2 transfer windows to do it. I for one was always a fan of Gary Hooper's. The fact that he scored 8 goals in our relegation season demonstrates that he is capable of scoring goals at this level, as well as the fact that he scored 12 goals last season even though he only featured in around half of our games, the majority of them off the bench. He was the only natural finisher we had in our squad really, and he's now proving that even further by scoring regularly for Sheffield Wednesday. I'm not saying that he would've solved our striking problems at all, but there would've been no harm at all in giving ourselves the option to have him.