to be honest we have all these cars available in the UK and to be fair i have owned all of them at some point and they are all good vehicles in there own way,i have owned at least 3 of each model at certain times in my life,down to latest and say older versions,the porsche if you want a good reliable car in standard form is fine,good strong engine that in standard form will handle everything you chuck at it,golf r32 had mk4 and mk5 owned them both for about 3 months max ,not that they are that bad good looks but just not fast enough and no real driving skill.Evo,s are very good car very light and handle really well good tunning available out of a 2litre,but expensive servicing every 3500 miles and if you tune them not that reliable in my experiance,then it comes to the skyline,this is not me being a skyline owner,just simple fact that for a good set up ie suspension engine etc you will be hard pushed to find better value for money and still reliable at over 500 bhp, wether its a 32/33/or 34 still a 4 seater with all the refinments looks superb an goes like stink,and you can play with the 1000cc bikes wether its acceleration or top end
i would say though if your buying any of the above and are going to leave it standard,then it will be a flip of a coin between evo or skyline,but if your not then get the 34,
mine has a triple plate os gieken clutch and i drive it on a daily basis,yes its heavey but still drivable but with the standard clutch its no problem as a daily driver,you wont get calf ache lol
best thing do do is dont listen to me or others go test drive both,or look at which one you like the look of most,styling etc then drive it see if you like it!!!
we all have our own opinions ,and so will you when youve made the decision,good luck and i hope you make the correct choice