Can you write a better version?

gistfile1.cs

using System;
using System.Collections.Generic;
using System.Linq;

class Experiment
{
    //ErrorsFor takes a hayStack, a bunch of needles, and is supposed to invoke errorMessage generator for everything
    //in the haystack that matches a certain needle. As an excersice, i've been trying out all the different ways
    //to write it, and evaluate for clarity, conciceness, readability by others, readability by me.
    //
    //Please comment with which version you think has the best balance of all the properties described below,
    //and feel free to add improved versions.

    IEnumerable<string> ErrorsFor0(string[] hayStack, string[] needles, Func<string, string, string> errorMessageGenerator)
    {
        foreach (var hay in hayStack)
        {
            string matchingNeedle = null;
            foreach(var needle in needles)
                if (hay.Contains(needle))
                    matchingNeedle = needle;
            
            if (matchingNeedle == null)
                continue;

            yield return errorMessageGenerator(hay, matchingNeedle);
        }
    }

    IEnumerable<string> ErrorsFor1(string[] hayStack, string[] needles, Func<string, string, string> errorMessageGenerator)
    {
        foreach (var hay in hayStack)
        {
            var matchingNeedle = needles.FirstOrDefault(hay.Contains);
            if (matchingNeedle == null)
                continue;

            yield return errorMessageGenerator(hay, matchingNeedle);
        }
    }

    IEnumerable<string> ErrorsFor2(string[] hayStack, string[] needles, Func<string, string, string> errorMessageGenerator)
    {
        return hayStack.Select(hay => new {hay, matchingNeedle = needles.FirstOrDefault(hay.Contains)})
                .Where(@t => @t.matchingNeedle != null)
                .Select(@t => errorMessageGenerator(@t.hay, @t.matchingNeedle));
    }

    IEnumerable<string> ErrorsFor3(string[] hayStack, string[] needles, Func<string, string, string> errorMessageGenerator)
    {
        return from hay in hayStack 
               let matchingNeedle = needles.FirstOrDefault(hay.Contains) 
               where matchingNeedle != null 
               select errorMessageGenerator(hay, matchingNeedle);
    }
}