Kos, everyone's entitled to their own opinion. Generally what forums are for! My E30s are both heaps, but I still love 'em to pieces and will one day make my 325i into what I want it to be. Just needs money.... lots of money.
By all means, lay down your opinion and your side of the story. But if the recipient thinks differently then just dont bother. Not worth either of your time to spend arguing on a car forum.
Anyway, I have never drove an E30 with a later engine in it. Ross_jsy has an M50'd mobile over here which I would like to go in one day, to see what they're like.
As for the engines though, I have drove a E36 325i and M3 Evo. The M3 was fooking fast, but didn't really excite me all that much for an engine. Same with the 325i.
Personally, I like grunty engines that have that sound that those engines just dont have. Theres no feeling of brutallity from them. I had more fun driving a shitter of an 1.4 AX GT than i did with the M3. Dont get me wrong, I loved the car, but it would of been a daily car if I'd bought it, and my M20'd 325i would still be my fun car.
I would like to drive a stupidly powerful E30, or some 24v one. But I'm not fussed about speed, ecconomy, smooth power delivery or that sh1t. I like noise, grunt and handling. Hence the M20, BTB and Z3 rack so far.
As I said though, each to their own opinions.
Oh, and Rav. I had an E34 535i (you might remember...) for a little while. Loved the M30! Would love to see what their like in an E30!