Weaknesses:Zlatan’s biggest strength is arguably his greatest weakness – his ego. The Swede famously fell-out with Pep Guardiola, notoriously clashes with the media and sometimes rubs his teammates up the wrong way.Similarly, Costa’s aggressive nature sometimes counts against the Spaniard and he recently missed three-games for a stamp on Liverpool’s Emre Can.You might say that Costa, like Ibrahimovic, will not destroy you for pace, but you offer them space at your peril.VerdictIf you had to pick a player for an entire season, Costa is your man, strong, robust and guarantees you a goal every other game, the Spaniard may not have the same technical ability or swagger of Zlatan, but he is ruthless and highly effective where it matters – 17 of his league goals have come from 18 yards or closer.Zlatan, by his own admission, is a wonderfully gifted footballer, and in a one-off game, he would be your man – capable of winning a game single-handedly with moments of genius. The Swede’s unpredictability is his biggest weapon and few others command the aura that Ibrahimovic carries with him.Ultimately, both are brilliant strikers, and leaders of their team and it will intriguing to see who comes on top over the two legs, as the one with the more goals will likely impact who advances to the quarter-finals.Watch Zlatan Ibrahimovic’s top ten goals:Watch Diego Costa’s top ten goals for Atletico Madrid:Football fans, who would you choose – Ibrahimovic or Costa? Comment below… Strengths:Zlatan is a physical specimen, 6ft 5in in stature, but with phenomenal levels of athleticism – as Joe Hart will know after his stunning overhead kick for Sweden against England in 2012.The Swede can score in all sorts of ways, and it’s difficult to argue with his scoring record and trophy cabinet to match.Costa is the complete team player, and the ideal Jose Mourinho player. He embraces the physical side of the game – as Emre Can will testify to – but is a menace in the box and rarely allows the opposition defence a moment to breathe.The Spaniard looks after the ball with great skill, retains possession in tight areas and brings other players into the game. What a dilemma to have – Zlatan Ibrahimovic or Diego Costa? Who do you go for? The pair are among the best strikers in world football and will go head-to-head as PSG and Chelsea clash in the Champions League Round of 16.Both lead their clubs with a talismanic-like aura – Blues fans embrace Costa’s robust, no-nonsense approach, while Parisians worship Ibrahimovic’s classy arrogance.Costa is a hard-playing, ruthless centre forward who has embraced the physicality of the Premier League, whereas Zlatan is intelligent and skilful, but both are capable of deciding a game in an instance.But who is better and who would you have in your side, the arrogance of the Swede or the aggression of the Brazilian-born Spaniard? talkSPORT takes a look…Statistics:Zlatan has been the better of the two in Europe this season – in a group including Ajax and Barcelona – the Swede has bagged two goals in three games.Costa on the other hand, has struggled to find the form that helped Atletico Madrid to the final last season, and he has yet to score or assist in five games against relatively inferior opposition – Schalke, Sporting Liston and Maribor.However, domestically the Spaniard is a class apart, scoring 17 goals in 19 matches to help Chelsea to a seven-point lead over leaders Manchester City, while Ibrahimovic has 11 in 17 – still respectable, but PSG sit third in Ligue 1, behind Lyon and Marseille. 3 3 3 What a dilemma to have Zlatan Ibrahimovic or Diego Costa? Who do you go for? The pair are among the best strikers in world football and will go head-to-head as PSG and Chelsea clash in the Champions League Round of 16.